{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "159381",
    "entityType": "User",
    "nonce": "0xfd2688f33750e0b0c8f204e7865bcd0e528239f8681c5efe8f678d620870d0bc",
    "signature": "0x99cd632bb04afcc68677c233a45c7eb06fe67b7f9cc6b2c67aa2cc0bba4e1fe1174996a3162295490774784342e6fa87a768317d00d983b34a7d473ad774d60f1b",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}