{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708",
    "entityType": "User",
    "nonce": "0x8b947496fa778ea6e28b62abc515e43bcab2b6437d45f58b2b337ffea723b49d",
    "signature": "0x1a255d837501a7e8656bf1bc62bd24a356f9cd6e623edc7eac95f168c48b87cd35527cfcd9dee0adedb9d17f8b52d1ff937a295604cc51d9777d9fa3267907631c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}