{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1979",
    "entityType": "User",
    "nonce": "0x93040388bb3c0c357fc278aaaca75b111dfb138961de58897c5d5929b3a9f02d",
    "signature": "0x7267bc812014e4495289152a3aa1d42ede4f5cf5a845158cb8ef3832b24fb2492d2c367f3a9efeaf43014485e56bc3ead47699f84094fbc86bd0cb7429a79ba61c",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}