{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "494514444",
    "entityType": "User",
    "nonce": "0x01a073365b29e6bfedb421073cf9bb405fd55cc7f0c57f0e5d4a03fa364f42e6",
    "signature": "0xff37545919f69a4d3d71d30e4602baa99ee18033bb65bd3aee4bb4eb3d234ce00568e33e37c9bb482ade72eae909b8ce30d1d1301fdd98011cecba55d12ea01e1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}