{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346910337",
    "entityType": "User",
    "nonce": "0x21a23bbabbb900c84fc15376cfae9118c1ff6070eea60f7892aedf7874b76a68",
    "signature": "0x202b2b8f4a545ed6abb71b77de48ada4758ae7b0e8734c46a1f25ad2287347a45bcbbe64f34973fc7e75ed7fdf242de1e7dfabbc6ca9c5ffb35776918a7b9e661b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}