{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "925149974",
    "entityType": "User",
    "nonce": "0xda51e036e94b6bd66397057c316ef93b09e45db38b29d7bb106b543f2ba457e3",
    "signature": "0x23c428f0d43be3d7aa6a65e2190a70d5d7c71c4209c965b20d94aa1f42a84c5405861acdb32538b4e06bab2a571bf87bcfb2386df7971664f4ec8e07ddbb9ce11c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}