{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1497336",
    "entityType": "User",
    "nonce": "0x80d617b8ea3868ff79c30ac1c50476f8bc55bfe568cc3b2862aa007c229c444b",
    "signature": "0xdd2d5d1425e559c17acacc23a87336e09a434bc7feca5c83b7fc9b20b00c055a4f0fd36ba47f3e1b94f4424a357a86db978a23c49bc26d042f0a81a4161876521b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}