{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52407",
    "entityType": "User",
    "nonce": "0xcfa07fdc41e2dc5647da2a26f5553662e83c9e061ffcc58bd88c25bb3cc35d55",
    "signature": "0x5c2af6a6c5e7e108f18e5bbad394b7d003dfe10663bee351e1c9b7e6febfe1510c9beb528a1132a740c44b2d4c66d5d75fe14593cb3b46ce9cdaf9f3d604ff4c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}