{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdabf9dd5e4a93e0c6396f350b94ee4416b34181a46ca5ead8690c659cb88b85d",
    "signature": "0x3be19b5184f25fe4dd704442bc2be44db3e4b011a2420cd58e8344ad59ac65e0621676fe5839a4de157d63a0a87ef87138d2d8ddceaf5c29d60541e6936d96a51c",
    "signer": "0x4209027Fe78Cf6820a14aE8e5F03B6E282fff14A",
    "userId": "600984032"
  }
}