{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171446",
    "entityType": "User",
    "nonce": "0x5bd65cf30075f093460633218f0c19594e3b3255a4583618bde59be98eaa906b",
    "signature": "0xe381522e93565755d6d1722de77ae417fe17186e5980c073f2de0ca2ae181b8e4302e102b150998d533f49898ebcf60493d62e1981ae16ed03362e3e991c328b1c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}