{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0xa814b7b858b2c98a3a1ae4c5f06c698e850c2c7ceaa519d205c0d15abbf78976",
    "signature": "0xea65c833e9efff28b3d9012890e8fbb7cf3a9859ff01d4d67e078e066271fe5c2b2cedaa53a4610ad464d315e86c193c6df111ac8f821b89cb538b0360522e531c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}