{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137582",
    "entityType": "User",
    "nonce": "0xd0327810f5fc14f5e041156f70efca57206bac51b36078a3e73faaa1e949c164",
    "signature": "0x5eb57d2599d03675d339e70a041a2160ac9eed8b6ceab6524e7bc802ffb9379f7b5d41b27b4197ee3d3109e09f3a1dbb60fb21e5ca4031c1de415579113ad2bc1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}