{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348740",
    "entityType": "User",
    "nonce": "0x6e3714a1e66769182916b714d6da671112940e4923b2228e138118e67f3cbbd4",
    "signature": "0xb0e03169f0f57c3177399c25d3c092b1fa9a67e2d4e08ccfdd1a752a1a8ac720647a424ea178598a49b5df7b35b82fdf9864ca6a441dd571ce5078926ab775d01c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}