{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x75c1429b972791d970b15412e3b50864c8aa86853c005e03cd17cd132e80ab19",
    "signature": "0xbdbedbc25808a09b3db5da9301dd8c7c40cddf9293ef830422c498f62831f4c97bab5891d06133917216c342df0bed0e54ebbc88a34f58d55df62c09c3972fc81b",
    "signer": "0xCf92e3B64A6016Bea96227078bF3bFf7d3511724",
    "userId": "659783089"
  }
}