{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301387",
    "entityType": "User",
    "nonce": "0xdb3faa34b90949a5e14ab5e1f6f1e85da014e78bdafb6f652ab25eef15801c06",
    "signature": "0xe3ce6c759c5645b9acb6f2c4f2889f74b517c16cb4fe370a812c63cb6362e7f27b82c171532127ab421d0ba1ef23bec801e917e919ca1e7136a1bf3c3c9ec88e1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}