{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5660",
    "entityType": "User",
    "nonce": "0xa9250b438e01d8ba6d97f4972c6064f064c78328c91b9eb785811958f37b299b",
    "signature": "0xd56d8ef118b3c9c5038608489607db85d4e1b4194be1d43535384727ba28ca080ef04429d593262ca92016bf9f05536ea5cb55a229f27133371d17700627525b1c",
    "signer": "0xdCAf5149A8084F2C1c72dE882740656EfA9715b4",
    "userId": "994758391"
  }
}