{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105773",
    "entityType": "User",
    "nonce": "0x0ab33a2d3fa02f838ccc520df3ace57bb0db11ec648a6067674d1a8f05b87741",
    "signature": "0xd659120f889f46005c4094b9a367a155701cfd3c0c45e6c456275987d910f87d28cb1687bc6486faaf8ac557236f0604688adb4b58a4af67b8927aaeb3e73d6d1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}