{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x02be2f3e475a66621baf7a166525cc9b1205d60916e07453c41fc2cefdf58242",
    "signature": "0x9d4eb67230f62afa7867203d0b6fa61e6be26d06ab90f66c26d0311b9251209d0b37bee8e6e63dc477ee4f677adca9f0fb8d0adf229bac5995ce181bf1c44a661c",
    "signer": "0xF5aE3A86843662910B5b3B056C9b489729A722cD",
    "userId": "760534498"
  }
}