{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "940",
    "entityType": "User",
    "nonce": "0x33421d56c211d7a3500c9dc490dd7a6976ade5e8f2166087bf1344c535402193",
    "signature": "0xf92919611d41f4f9ad63ee26e9ef80d275ceff42923d7a5a8c0f1d39b684cf55694102af9b9ce7b59d15a92fed43e7d8cc70cadfd2b82bce3beaad6d0f1c093c1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}