{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "828616004",
    "entityType": "User",
    "nonce": "0xb5fff753b0bf5eb6c4a9d40b6e8f58e30943cb8cae8d77b90e55f055c9189f09",
    "signature": "0x3c4ee6f23edde9e4acc516298bd56a1daf7cc6b3fb1839ed5cef3aae835c94f05f8f42b2b65462f83372e1b6eb9f13ee78754c6ff4d6ce2d237a8794989c645f1b",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}