{
  "manageEntity": {
    "action": "Update",
    "entityId": "117746616",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5ed03de350a61bc28609be7ff1e8b91ed31976fb1ab51dc5185d2360a4fb5d36",
    "signature": "0x3185cd0c04e29de55dfc16a23d99770d0578b751ba7239e83f89ca9f055d730d4f634fccbc3148792a3aa52a081e5a4156dfabd14750b28fe466304a216edec71c",
    "signer": "0x7cBf9C818e64D0e7E0f624C52725f97CE9E2C312",
    "userId": "117746616"
  }
}