{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "79876745",
    "entityType": "User",
    "nonce": "0x581ec4ad0ffe2dcb505a80306ac0053d3d9131ebf6002f215a17ca59e5408fc6",
    "signature": "0x86db31e2471cd5149815cd18b208ec5da2be5d1ccb281e9913f436131de157932bf4adfa73be7b5ef036270fbe2ec1b6aacf2c9713df4353d127159e4e67394d1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}