{
  "manageEntity": {
    "action": "Update",
    "entityId": "570105610",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x179ecb12dd6f03bec45f6af69f9a37f4237f4aae2bb2e2fdd129cba2aa6c92ce",
    "signature": "0xdb77d331eb89ee828d324d9db26b873ee816cbd0f99bed1191e318cc4afd625d7868dc29e23c18d21042dad56f796c965f074f4def5d5ec5311da330edf2cc021b",
    "signer": "0xd5Ec6Dd96990D5BFfC9f13A05EB6DF120A1235d0",
    "userId": "570105610"
  }
}