{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1477402",
    "entityType": "User",
    "nonce": "0x86ec5503d4c5b05f408e97e8513c0f8050837caf32c5ac181b8c8f5ed7bb688d",
    "signature": "0xcc13fc68dfce331f8f67ba1286567506b8240db394a98b6339e6ce094198826c26a2e9715e9e456c3fdd73bff194e97c9165a34f0f3f42da5c0d82ad4956de1b1b",
    "signer": "0x3Ec9E017e31a38A18602E735a761076100861F7b",
    "userId": "910895194"
  }
}