{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "824478223",
    "entityType": "User",
    "nonce": "0x3dd38b81d369efba27f8e4821f32d3b270149172cc417fb75df9941495b73ede",
    "signature": "0x58c3fac106d3f2f83321867a2ba3926951c6a9f03470f084e873ca16265b70db384c3a5b08c4a3736e85769b614ba943203073e1663bfd9e678337b9f99f052c1b",
    "signer": "0x87FC3581f96D45b347BB39E15f25079950C5Cc27",
    "userId": "339826419"
  }
}