{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd2ce2a11125d4a080f0c7c85ece62098450e572f7917fac253e9a025a8ecf141",
    "signature": "0xb262354117a8e696888da14924e1ddcd5112c4e54b9384f2a8d64b35013b6c220142c7103335ff04c02f18a2bc49e6229068ae59cbdcee64066c51ea4dc677d81b",
    "signer": "0x706747243B64d94c0613b28B04d5B5302804e671",
    "userId": "205114819"
  }
}