{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "153471",
    "entityType": "User",
    "nonce": "0x9e637d27d160651922a00560f3a9ecee883e79c25a12d82941226fa7512c82a9",
    "signature": "0xae39bc17eff9c41e856879a44ad5181da7a8eb5fccd2db82dcc49ac040b4a997367c8ee1144e5def38b2618d2ecfa464ea7b8719d1d7ae6f5b00a4b09be859d41c",
    "signer": "0x0D99d09883dA573bE5e8bD68384aC7C0957972c9",
    "userId": "934768108"
  }
}