{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x919cb36e6bc4d80b648cbab56500124c40b2712b8f253a2338feb952f7a8704e",
    "signature": "0x811dfba9f83893aff769899115b6e3b3b5493f7543fb063152b9d79bb899042263466e2011b1e448329cc44289786cfa94c2f01d612eaaad99ae514a3503a1ad1b",
    "signer": "0x62f4a8437469156239398e8739375F45D723abE3",
    "userId": "44159"
  }
}