{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "252761511",
    "entityType": "User",
    "nonce": "0x8e38e812afc74014bac6ba647c2390c756e83f16b89cdba32672ada5d0ed6653",
    "signature": "0x71d2869f1787736ead160b840f895c17d9e33f7082f9fe743cf5a03412279a6b408e4c8dc846efc39a89878b8a790d34861079ae5eec95254f423a4703eb75671c",
    "signer": "0x98fC2b30E6e70e62dB2b5fAE7b0292DE3D4323Bf",
    "userId": "480962013"
  }
}