{
  "manageEntity": {
    "action": "Update",
    "entityId": "831500755",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraj6tt455f6sjekn3wt6wfpq2qeosmepnh4s7b5ku65mf7x5vqsw6a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":37780519}]}}}",
    "nonce": "0x98be1fafb01945cdb3c0a3a33547ec1d2412b6c2e9086284b382afd297bfaa7b",
    "signature": "0xa459f2d5d29a478e9a0f6d2c21c02a135e7d8bddde2157c094cc275487e8194705e3b8ec09fb9ecb9b28521b68129870b85e1e234331b7eb319de714cf13826f1c",
    "signer": "0x174ed4cD14f73d37586b23CeC545C5Bf3855751b",
    "userId": "831500755"
  }
}