{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa65d513cda2da0c08893053ae1a4c458cd3fc10afbcc489462d6fad9b96adf6d",
    "signature": "0xe8925e0ae23e2b7d3d6d74d551c002a1f2178f5b8702aa17751b00e7dace729d1c7797019afa126fe93f365331bf1ab37803ea9d74fd87dc5c2fba6c8e6bbf3a1c",
    "signer": "0xfC62fE09aBA088B02e3F914a120C6B67a48bd57C",
    "userId": "596638791"
  }
}