{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "22780",
    "entityType": "User",
    "nonce": "0x900b7a0567f1607048bc475ca70bfef4ce3338a05bed02caf698c07f6e3c87cb",
    "signature": "0x1ad797cea902dfcff1a1500f4a34bec83bb24685766cf9ada1dc3a8b2a0f4970105f91f2145d6b7274f6f765ff3753705ba94a02d70aa12212659eb0796998321c",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}