{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "862512182",
    "entityType": "User",
    "nonce": "0x63e5e7f2dcc0dee800eae16f1ad6ccf87594bb7aec6f6f6b82905a4ecedd454c",
    "signature": "0x27dfe619bf2f24ec466756cda4ba1b065d6b514b33c6a702ada48279b80470c34d0a34ecfe1e3e78dcd5b97ae9c0c5fed7e03421561061be08859dbd1bdd91481c",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}