{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "723104",
    "entityType": "User",
    "nonce": "0x1814b82c614b106364b92fec8a269a61814c8b5af8e41e1fdbf0925669bd2163",
    "signature": "0x13908ec05f5d0d56bdf61bc9ba526542c253236b6db914d504dc5934fc66d2c6038c806f5bf7e26ec2d9be110c58c5de19da3e60d883945dec990d07da3b96051c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}