{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x1c80b8b88b04a730fb6a73fd542887454ce6e4f6422ba9d85124552a10695def",
    "signature": "0x343e701eb665162895fe53afe3b7b23e68eed46faf6ccbc2b965e68c377a67920b12b609305e1ab9f01334c81c9a3fb28042bf6e3110ed774a88797ae9dd77bf1c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}