{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "197011607",
    "entityType": "User",
    "nonce": "0xdbd0b4b474626b271b52d8c500ee701f78c98bb9daf64f32a2c11da7e9e11b15",
    "signature": "0x2501cc26693c10113efdad209ffe7fb95a5ab5a785792e769f7a2465b8a57b2868f11a23301a62e4a6e18ce171f9b09b6dc4a4212279eeaba0841746aa4fd9101c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}