{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1228",
    "entityType": "User",
    "nonce": "0xa815ebddd974bada714571af2f1907bf3e22f2ba5f3d7115b058c2df082a9587",
    "signature": "0x926a5ebc87ef663bdee44d858e11a7320f2386e121272eac0381c7b1837ad2b558766d2c898c814902e5567eb3ca8f6bd85a2281bcdf5b9851eb5c6dbe0ed1d61c",
    "signer": "0xBdEDA9FCB76346C79650651637D11Fa62F197564",
    "userId": "138691010"
  }
}