{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "568518925",
    "entityType": "User",
    "nonce": "0xf7a9e9171708d116e921cf597d4600fe4b74d26546e45082b5415644d43f8dc1",
    "signature": "0x1b9873055a44e87ed4acbb6a9a0a58fdc396a5626d288b90024a3f7446797a1374052250f2e3d9f5ccd187a671fe5309a535bef45890c394ad75ba362e8c419d1c",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}