{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18932",
    "entityType": "User",
    "nonce": "0x87912356ff131b49fdbb8e7b05a6a9257318f37b3eb0893644f1a465717c1465",
    "signature": "0x89407a0c8988f24a95690d7c4d5add59c5dc8665c88528c767f0e3f300ea751c724c34c77cd61ad61de83e57231a9b156c254b461fb8c3e13156be2383a9b16c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}