{
  "manageEntity": {
    "action": "Update",
    "entityId": "486159454",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6b9c582bb50093a9847ce7302442fbb6744d8cc02b7b4257324b53fc8174fcc2",
    "signature": "0xd5041c8dc9031404e1723406c20ebee7379fbcb7490f117c3e4eb343ba6733e47e405653c73f0c7d86237b14f02bd0447121acca40a6a1ce0fdaa1129dfa68361c",
    "signer": "0xF978BADb562Da025f06a1182ce14a17F541Bce57",
    "userId": "486159454"
  }
}