{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0x2ab054925e3c8fd1e80d323f294a9d53610a2f2ecde855a6e37793f9bf48ede6",
    "signature": "0x12e75c0f954909b254cf84cbdae2d83ada2a50598a4ca596922964f193a2b7e43f91e5340f8b5ecc7af43031ad41b615e89f39a12cffe743d1d533a33abe8e951c",
    "signer": "0x887ff90b6e9a2F5c6Cf1E862028545C66FC95d72",
    "userId": "141224956"
  }
}