{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311257477",
    "entityType": "User",
    "nonce": "0x8fd927ac38e0ac5e981b61775d7979778a7888844b85e28ba3bc76682ff50a28",
    "signature": "0x4c641fe520dc8cd39447c50b24fe6b61f679238b9e0ff231bba21540c25966430dde3ccef36cfc56236d985ab061b8134324c9a7990838d3da73e5d8463e9e981b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}