{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65819",
    "entityType": "User",
    "nonce": "0x78159fc22b35e1c1cef66056d91c38c05ba1cebc9a04e32d153ead8ecc1677e5",
    "signature": "0x1b5cdbffdf3e655eaf4351f77303be69c354a54b0682182ebb2417f775b6da2b154a4dbaaac59761c7ad36bd9fbd61f3acccf97613ddcfab5b42913c02e5db131b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}