{
  "manageEntity": {
    "action": "Update",
    "entityId": "15028640",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0533b2197eabc9527995dfc9756ee393465e49360aa3b6f981af30fe2c5379c3",
    "signature": "0x51bc61d54e422255c62e0a6fd917a56ce7316d61274b1f356599d14c38a0b2383abc0744f6077b5151a5661e16bd5a2fd12a788bdb18ad3459dd72b6eadb9e261c",
    "signer": "0x4c92424eC92f656975227833C14e560efa65A7Eb",
    "userId": "15028640"
  }
}