{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42045",
    "entityType": "User",
    "nonce": "0x42bea8d56505a11ba0d076a2f023564514a323fb00cd3a433ad9368a26ac0992",
    "signature": "0x7783699275f823e1ced59c23b49989bab2d9c5c67f0956c163ec9aa4251073ac620de003589525f4795379536fe2d1410da87c70ccbbdbac0e83743fcf794d6f1b",
    "signer": "0x4Ff77Da6D5C7286ea15F7F94FdCC04a641dE9a27",
    "userId": "512734349"
  }
}