{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1605",
    "entityType": "User",
    "nonce": "0x09cc0b46c214ec8826f9ec51f6b55894e27e3efac1dc64e335a6565c1982dae3",
    "signature": "0x42f8635a8916da8712d95bbae3c4dd0bc72b6eddf49d61e7d55f3907c1a1bda613fed1cecc6472e8a99430c9b6e6f5d0c7acd332590a9ccec189819ff9b3f5141b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}