{
  "manageEntity": {
    "action": "Update",
    "entityId": "776638940",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieramzyyuougzyvrdeukzlgzicucuvu3fpnhtewogcoarouf5hqlvwbq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":691568275},{\"type\":\"playlist\",\"playlist_id\":2120217898},{\"type\":\"playlist\",\"playlist_id\":688872607}]}}}",
    "nonce": "0x6a7c442ee18086a6b78ac84d72a639f95eee29886921681e9d164617655c2b7f",
    "signature": "0x5903a18856f6cc682a291edd1e2b8e4528168960eb91f0e12b0ddf0c7ede4d8844e5a3e5cc63bc5a8b5c9cb3fda3e87e789d8bb646543bbae00d357ca3b5dc961c",
    "signer": "0x8805bd4bff46C7064BBabe4db2304381C2147Efa",
    "userId": "776638940"
  }
}