{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108615",
    "entityType": "User",
    "nonce": "0x88fd2235c83a6666a20e33535904a8c7f471aa877fd49752799fa1811f7ae1b0",
    "signature": "0xde1ac0835098d99451ab09cc8dbd803fc4c385944e40b10fd201bd2e664344fd6373d62b79138aa9661fd3efab4104cc893c0f57e0ec6c713bbe958ebbf064c31b",
    "signer": "0xF83f8804040D884fCBAcD57d4Dbeaa764176F931",
    "userId": "455502808"
  }
}