{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2412c2dea7ffffff051b4075aeb3991633b61669484b578772d15ba6d1953e00",
    "signature": "0x76bdcd2b24215270c6c3bd51cc7de78aebea8cf39a17f171055a0492427dee385068c466c9dab40927f1b1c03efa8fbc23fcd70ed32e617d9dffa16b73e15c221b",
    "signer": "0xa15e0Fe28074AAea430Bc6640816eAB723B796fc",
    "userId": "365634342"
  }
}