{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "849737890",
    "entityType": "User",
    "nonce": "0x3a71320b215eedd4c7e5350a11b75e312abc7047fb257aac939b65f5404aa487",
    "signature": "0xd2a194d04b37d74500ef8b07e6d6662316c8ece2b289f9b2d5ebdfedb593335f4c25eac3b761b695da3beacf8dc85392dc5bebdaf19035334cefffe7a8e4b9f81c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}