{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309242061",
    "entityType": "User",
    "nonce": "0x555b409ebe27740c58d930fe28dd08ce6e5ff9bfed79d211fb2fd420890b28e6",
    "signature": "0x85edd3a9b07157c6fb5d4ac00dcae594ffde79aa42affbb152cdbbf60d1f555f33e5f1dca5cac833ca17cdcc141f1df8a71843a374f723ad3297e9b148fb3a1b1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}