{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1463955",
    "entityType": "User",
    "nonce": "0xfe2c8ef86a3699d38eeb29aca1652ba1c9b6a83d39992b0025af343836e711c1",
    "signature": "0xc2a40b72166a34a9440906092d28592f7151ef462444f21ec749c37ac2891fb36566db71f6b8b77311ab40e4dacab77a2996a35af461feaa79df618afeaab1421c",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}