{
  "manageEntity": {
    "action": "Update",
    "entityId": "416824146",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3834c904bf05338a8a55af306caa6db95ee04b8c8e6414eea85dfb7a4de33f33",
    "signature": "0xc0f52c56ba6799808b0b9b21a095aa870e0fc84078c80842861480129090535619b25f19291b628d63cf8a762c50cd2a781de1b0381c2c5f43257802cc8f695b1b",
    "signer": "0x7398b9C93326b10e13A44ea32C6AD2e1d3e85cAC",
    "userId": "416824146"
  }
}