{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "788557491",
    "entityType": "User",
    "nonce": "0x61ba4c06731f3f6db5637ee1fa3a975a41a241ae1046e6e748170bb66252f1a1",
    "signature": "0x12f8d8c96de5842b5252e6fbf36ce0f9ca1c18c3d1cfb2afdedb0745d5586fcc18cb53ba1b719b64a9acaa8729fb9df28032db3e6306185c7dbbe7856be143d51c",
    "signer": "0xaAa341C1Da173ECdF2b07f14502253BD2FBF233B",
    "userId": "261971"
  }
}