{
  "manageEntity": {
    "action": "Update",
    "entityId": "876735576",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x61e0266d6ca384f373a645ca078b11e47faf44f3cae3e69f616922629a747711",
    "signature": "0xd9029b66edc3ed556ef554d03b4c186b590626fe995c726715910c1c50fc2a2b4b566b078feb014459c7e249283353d9b0be3e4abbf3e46db7f44264f672ad661b",
    "signer": "0x1A03dB80e576Ab52a1E1852ba81778ae8f8f3f95",
    "userId": "876735576"
  }
}