{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1885739",
    "entityType": "User",
    "nonce": "0xb9b7e7e6a5af8f848f53f624deddd2582cf17ea8c3e960a475cea890840cc04e",
    "signature": "0x4224678afdf76e3932bd99b22cd4b8f62ded1bfc3e368e9ebba2098e60c26570682fe600266f5f5c016d21c8e94b087aa0d422fe05a0e618e7214bfec14b33d61c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}