{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74051",
    "entityType": "User",
    "nonce": "0x1e843e00b814cf93fdb844bc3920c6b3b9729ed34f86728b347c205de0538790",
    "signature": "0x0835385f8bc7391603fe6a56f75ae6b9a2d59bcc0a687c80e97f0366935fd4813cc504cd47bbc99f0d0b8459c3908ef4bd8fdcde74d6dd2589da45f4b6a7746a1b",
    "signer": "0x8ce8B4fd5ED050E67C0aac70eAB0a188FD71eeC2",
    "userId": "757523374"
  }
}