{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "938519346",
    "entityType": "User",
    "nonce": "0xfaa4f736dc8c074ce603a21ba4a12bf32e81a52ca137398bc5d24b46f6f21dd4",
    "signature": "0x905478cdb9ee284e7e83157b44024f221ff9dded6173ceba8f0e483161cc6e451788f5c8d4d26115a089f0e012d8e2681ac4ab904e4898db8517ef098b6a3eaa1b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}