{
  "manageEntity": {
    "action": "Update",
    "entityId": "143191677",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x995fbc080c7c18c01140f7df3e8f4c2cfd037716e6852e515ffe1cc5bebe10e1",
    "signature": "0x30fe692aad52b8f2c5183c7d8a097281a15f2ceadb9d9b0e958663b3809bbc4c48c92f140b0a3afb5d7671dd3e2d765a2bc6e198fd6fa113e1640dfa9ee25db11c",
    "signer": "0x84cC6c6E58710325900E2F6a270f514802521BaA",
    "userId": "143191677"
  }
}