{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "398",
    "entityType": "User",
    "nonce": "0x84d08671116c08e55ac7be21871a4e49056b2df9bc1bbce0fe9b46317fbe3baf",
    "signature": "0xed88fba9dc0493b81654f53f5c5818aa5af98b51cea1a6e6b05300712b79a9420a72a458b34a7728e17916754f2c91a26dd28c88edb0ccaea82cb02ef542ce0f1c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}