{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "852344394",
    "entityType": "User",
    "nonce": "0xe2ab74c457bfbdf12c176aab772176ae3df29819c0bce3328b30c1fe1b44568b",
    "signature": "0x753784d2a67309862bb2a6662577c4fbadb38e867638ebe777eebd8f44dddcd700fa48502b2775dfe18c641a451167c13deba705251f91cf22585de5efd094271b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}