{
  "manageEntity": {
    "action": "Update",
    "entityId": "737800476",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1fe04f2d3638e2a1252fdb3ee57dc4b0279d5140bb4d48c8e03eba4e059d902b",
    "signature": "0x24cbeacea439a1547fa08f86e296946daad4608d4250450502edf2b0441fe8ed3f5f4f738149b53a5fbfbec50437dd88cebe87d96047f7f2fd84882d883f03bc1c",
    "signer": "0x23d55e4F7A8b0F1337072Eb2e5578687000c7566",
    "userId": "737800476"
  }
}