{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9e7fd11d4988070372e142100f6e2a0709077e4babfeda2334ee75df2fd3ee36",
    "signature": "0x4e99af4d539dd19ff3952ac76aa4e3402f4af5a95fed9d0f66b7c02f05fb70df057bb285cf7eefdc11b14321dece9ecd267548343eaf875efab60bd003e62eec1c",
    "signer": "0xc40850178B74672DD809330aE4477a7Dc40Cda7B",
    "userId": "93814449"
  }
}