{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30263",
    "entityType": "User",
    "nonce": "0x4aa08c2aabfc1ebb77d03ccdc66bc10b3953dfbc8802e7fd99532ff366f9be14",
    "signature": "0x8f803e6fa5ed361bdd783c7334ad019ed335ff0d014b9203d7180b8c0f49410e0f62ce2698ce8062b4f24d90e103e096fdcdda3a72ba65e39847dd333209058d1b",
    "signer": "0x0D29e890aa88a8dd37e712bbFA353Db83b8B5D7f",
    "userId": "547890227"
  }
}