{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xad0396a36a2c76df5e600a8135d0e22c97924e16b2055f6f5ec24b207122a77e",
    "signature": "0x66daedaa75ede81b22f5b3c6ecbbd006a1b1f010be157bd89a6ad33fd77fea012a8b11996f71796fa526cf97bb97b236015bfcf74f0fb50719a096d6b9f85fa01c",
    "signer": "0x8BeD66aDB2981239B8aA7129A4F005a49489fDEB",
    "userId": "391063960"
  }
}