{
  "manageEntity": {
    "action": "Update",
    "entityId": "50459839",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3e9da749ab0f8aeb5692a90e940588e471099e2b9dbd346f4954656e2d5c1d7f",
    "signature": "0x7151afcee354b8d2c2672a33b1ab0e52075bbae1dfa779f7949c5ae2c2d8a6e1156518ada3383bc46099fd4caf6fba795e6f7cd9f64182840d492dcd4113ce2a1b",
    "signer": "0x4E6B9e895d4328B1B54C7f3bfe593C72976B9b95",
    "userId": "50459839"
  }
}