{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305916",
    "entityType": "User",
    "nonce": "0x374bc2e40838d0b9bfb31ccd4c58909539cc547da9125f140f819c66ab0348ac",
    "signature": "0x54f40044b4eda695ebb40114cab9af3fabdf39095686bb98eb9dc9a4eecb10a231a9f3312904aec41e92c123f647ffa5cac2c7369b2cc24be70ea0fb68df13e71c",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}