{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863286534",
    "entityType": "User",
    "nonce": "0xb3577a73a66ca6f2f8ec2d1f46d58ad5ae1c0bc61193f421f4a432c41d6787b5",
    "signature": "0xc37f9c72eb7ebd5b51418ed5bfb6b0cc58434934a6a2b5a7a247bdd410d7df63128a3da1c163c2ded2675740c045bfc0d40857bd67be79618be42d2561e653701b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}