{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "183480",
    "entityType": "User",
    "nonce": "0x502b5302627b0f1384fdea71a92346b32c7f87ab867b5048af0f2a8420763c35",
    "signature": "0x5d78706dabd77ced63a13a650bca9c079b7b41d10667b3a98731fe47073c3d35405755bfbc15a07a49bec753876336bca2ee481ff4db115792567fd30eee4b4a1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}