{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "760716",
    "entityType": "User",
    "nonce": "0x51aec1d014b2e06b7ad92c994c8918c6309755447765b6c450e91e800bf05c18",
    "signature": "0xb932837c54cc662620ed74862a88b8739dedf4729c21901f0d659066aa51359b3a45fe4892d6b6f6da807b867b78ebe67e11662562d5f212a0d6591c4d04fb961c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}