{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "166187",
    "entityType": "User",
    "nonce": "0x29b2332b5b6ab69e452154c5ea7d82c64e430392687c0d2bc8ce1659097414d7",
    "signature": "0x6197d3dd153b8e99aec91284228dd1e9dcd0ad5797b2ecc2b70571cf305ab7bf154ebd5ada84cbf90d2a64ef75cf40af041ddb2113498c0ec1cf3b5fc4d1fa4b1b",
    "signer": "0x57Ad6E2E3fFc5ABe9b5FE7DC3bF7c07c8cCf9Ccf",
    "userId": "571702334"
  }
}