{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0xf8aee648dadedb1e9d139cd7980865f837aa891a273ab3818c15353786f22337",
    "signature": "0x0515f2c7e29a068379744dea77372528a7594da1337b9c616a6ea8af94fdaa5a5e54e69b8ef1e378e0b0c782867bb27b744fa63a6dd184441bf90197d3f804751b",
    "signer": "0x7Fca0754B90893F156B055e62d9ae45AE2dF4686",
    "userId": "308196323"
  }
}