{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "492126689",
    "entityType": "User",
    "nonce": "0xa38516a39cbb1991490d50c4f3a6aa577f290c28e0c60f1f3210d1642b7c90a4",
    "signature": "0x9351328f19b5d2c16964302d2ed6fd92e91cad434f779b5cf7edf2e3ae33fcb41c9ae2d6d046e6bc886b318423b2e9454f4b45eddb1569313a06c389b692b3461c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}