{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318823",
    "entityType": "User",
    "nonce": "0x28fdfbb425c295c3b39ba6d5b8d07dcf490e61721b6965a1cbef71602f53e03c",
    "signature": "0x2dfdec164c461c76284aaac5cdf2a9c82176ca53fb47ec84f4cac87f5cabf59e66d99cf0f3666d40ed6dd82516c28d6deff55e2569f2517f2615fbaa63e0e57d1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}