{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7519",
    "entityType": "User",
    "nonce": "0x88c23d186c190b74f6600b72073e25134665734a6c1603935bd95544d56277c5",
    "signature": "0x9d7b25baed89ddb613d8e6271b0a3359c3efeb2dca2558e1f6301817850ce63b751fd17116be334d1085faf897614808398c87525c0180007e637eee588aef3a1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}