{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164551",
    "entityType": "User",
    "nonce": "0xfe3978f9d06aa812d5b7bc13f5e1369c6fe6f9ae1888287a4bd03eab7354d146",
    "signature": "0x20dbfdd55aa3deec95e4fbdda3edcabda06844c320aeefd1fc23bff321e2c3572945a489dd7c2ce935bf1feeceefbf0bfb9778ef866ff9d0a947f09ab7af08331c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}