{
  "manageEntity": {
    "action": "Update",
    "entityId": "130012468",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraebg5ozrne46d6ayo7n45uoovw4guss2nckahso5utjstjio5gywa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":933464280}]}}}",
    "nonce": "0xeee364bf2f441cfc1bff47e6e77345851efb56c238bf2291b0fa8c3397d16ca0",
    "signature": "0xdbb552eeaf02af83a3aacce1533ec8b08a82d73a9e11b2f4bfcca61337604cae32aa6319d67c7be891a610950e5f5104825cd67ba5dd1c6a1d990a3237fd61df1c",
    "signer": "0x730e23d02530b0D1eB43E7C03E51a2113e66Cd23",
    "userId": "130012468"
  }
}