{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "208551",
    "entityType": "User",
    "nonce": "0x5e07c6952815b736120b51b18e5559bd91cb9383d04f3d6b37d7fa2d7daeb3bc",
    "signature": "0x3a542d17a2b4adaedebca0ff53e64b5aeaa90e562814c904795e7a0619fc38714198b818976dd3338ccb18a28ed02b0dd19ab16f07dc1a47976836f417db082f1b",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}