{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe876c01adc99255bd4105c86c09be526b279beb872be03ab4f04719d3b32177f",
    "signature": "0xc7767c0eeed8aaf2197bd5bbf49e56c552504a5dbbffe6fe453b288b09de804f300b19fda5934ecd71792a2f82dd8b274bb577d8db180ce181df1c87785d22161c",
    "signer": "0x17050b5997c258270D40397007E4e64153B748Fe",
    "userId": "785524612"
  }
}