{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0513f75a3da1cbbdbc8237c75a368601988f64c2f33ceeb74012d3e7ebddb017",
    "signature": "0x0a5178f8df7038fe5f15fdf25357e55230f0996b688b523a4cf8d6b2286e35df5ea556aca850f536eaa92fadce814185eff4af11ddf3acbaef606d93abde9e0b1b",
    "signer": "0xCa3726B5F11F020bb556a45721b2937A9639aA6D",
    "userId": "126966877"
  }
}