{
  "manageEntity": {
    "action": "Update",
    "entityId": "330155528",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcd3a2a023004eccd7a5a464f5d3724726a2b982c0d6a58eb904310fdd6bc89ba",
    "signature": "0x4ab44360baabd89dff53e8133faae06a3bbd762dfa70f83e8e1f7bf5bd473fbb50f4fab60a72b9cbff2360624bac6fa3547b1d45431712a4097a42a7fb4c60471b",
    "signer": "0xA9f7cA90CB3E905CF35106aC13C4C7482C89F9f9",
    "userId": "330155528"
  }
}