{
  "manageEntity": {
    "action": "Update",
    "entityId": "392289893",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraoohxyuqhwd5hxeklcbsngywfqf4wp57dhalnv6ajgmdsjsc2lf7q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1839215861},{\"type\":\"playlist\",\"playlist_id\":1258371836}]}}}",
    "nonce": "0xe12bfdc764f02b14e3a1b592b814d4e2f74b395293b51e3b6945d50b03351be4",
    "signature": "0x41b9c11929d4fbd9485bbbb7c11dcf765e746a1e546fc188bbdd236dc8d33ee65259a6a98e42fc8f9c5d1d93bcaece38417f2dd8106450393418d941d257a6e71b",
    "signer": "0x8bD50Caf0D290982E2705EBe89ED8fDCA620224a",
    "userId": "392289893"
  }
}