{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0x0cd60be5ace557c7bd3713bcf4143f8c27c0124432c3df29e3e80c7130de5bcf",
    "signature": "0xfce2820772754808f10a1082a24878402dd9f12f681b3c8791beaf4b060370dc2bed0e38aacdee9ae23115435116abe05fd5c11598bf1268bf9e5c517c4dac321b",
    "signer": "0xb51B50C9b7d88C66d31539161F4BA9Dd72a17dF5",
    "userId": "465531556"
  }
}