{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53747",
    "entityType": "User",
    "nonce": "0x4ca083e499582a33ab9d97139292ec69c57474ab491d5f6b7c1baaf73d55e7d5",
    "signature": "0x35d5ddeb59b64e3dfc1eacd6347ea8a21022130cedace296c300dfc2793f42d7380e1f4f11f391d7c35feb4f3107d4b24b2196afd5351396a683bcb9574d7f5b1c",
    "signer": "0x32e5e224E0727A7B2CA7FBC47b945D1B1A59abDc",
    "userId": "76829893"
  }
}