{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x52718c8b020cf9160d59b31118f4f7170b3e825a79acc350fbe0747ba86b4c5c",
    "signature": "0xe6c384313515ea8ca878cb0e4909c6692fcab356c48c3d2c2d41905767801156624a87086b9e9dd72b60c609a2374601649090917b1b5f2282aa1b45a23c57341c",
    "signer": "0xa6f7cf3B012B7DD5c8560B1eAEc946e663584a79",
    "userId": "657789914"
  }
}