{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "257465",
    "entityType": "User",
    "nonce": "0xddfcc01c6df80a9c48aff90409c67c50bea1dcf82a34af8a16db2a7c372ca5b8",
    "signature": "0x78a42a5d2b58c0ed3c63b7dc6d4db5e6562d94cf99cb22344dc580b7ba59f1e1070888098ed9c290e6bfa2122cf65d8ddddb285411684b0ba653ad816bcdf40b1b",
    "signer": "0xab97052A857D6227f6165BAc2708432a46C287fB",
    "userId": "159597058"
  }
}