{
  "manageEntity": {
    "action": "Update",
    "entityId": "358472473",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc3b374c526d372a8123e15caa431cce3c7e71d58f0a6bb5d731fab159217253a",
    "signature": "0x038337241c7201ddbf0ad3f40419079cad2e9df6723caf221e80c6623460488c7ead5528e8882ee6c0641b708ee623c988f6043b2e97361e10d6370d8e938d331c",
    "signer": "0xB60F916E7a1c9269b7aB9CD83A0530780f4e42E6",
    "userId": "358472473"
  }
}