{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xee51793be6f20614f65ecf37d93cfc39fbb71637398ec94e31359ed14d06340f",
    "signature": "0x7dc2cb6ae4b8bd79a548988d63081de5c41d6746963ce22004f77b0255bb4c4a28413752b679f6bbd02ded546565a42dd3713eb956d7206436a341b635438a141b",
    "signer": "0x098b5846E0b52b2973B88a998B9382EB990e8650",
    "userId": "686324705"
  }
}