{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "191130508",
    "entityType": "User",
    "nonce": "0x42212892d2fd52d5507bd78ef6a4f10c2c3a53d491d8644fc2ac6fab188b84ed",
    "signature": "0xcf7e83d2b46395a3a968b3d974b23ae20ee89fcb078934fdfdb19b936b37da6106ee389cdc09960899dcb4146c259fb0c2287318596f9361763bc506f99d9d761b",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}