{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "815984668",
    "entityType": "User",
    "nonce": "0x0aab1fa97d23c0322fb3b7cfcb446eea29725cac948e4649ce29399ed757308d",
    "signature": "0x9ec0699302eb667983ff0d120e5bf469d85d96776eac2f16b6d12e19ae4170bd319775e53239f913521588dc85533ea858e4e36785bce9c5995e140f057e92ba1c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}