{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6464",
    "entityType": "User",
    "nonce": "0x11f91b71eb3eb784a2e16aaf9b580b5342cdfd6f453d83a70e54dcf98482ef1d",
    "signature": "0x8aa5ec7156fdd33eb878fbce5bfda1f675713848b3f982482cfda4c1486d63ad7cc9ae631c9ef531b1bb242394ce59c1d93536120de7eb5fbc56efaecc51a5791b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}