{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xe7c4b7cffbfff1c2371e3c72c8a26d16eed3e67dda9890714595fd64e2979676",
    "signature": "0x75f5a60a751da15fb0f343bfc7d797b58496d30128471ff446ff296b0f140a5473b1df0697d0b90e1446dff7e339c0ce0a26e83462403f04e627f8a432ef7b361b",
    "signer": "0x849b8180f084363b37768C823c174C9786020A66",
    "userId": "817339612"
  }
}