{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "578268836",
    "entityType": "User",
    "nonce": "0xfea53d54c30b8d20e26453abd2b4e4dae144b41618137e44fe0d31c631a100d6",
    "signature": "0x3101792e75e165df85ec03c1c01af51f27a2a8ff250ab35eacdb734b9a392b215bf5c83b6d8de3b1fc0af2059c96aeb714851c04689e19c14d9095516ff51a891b",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}