{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x516be007531bcf1c40aa82b4c68bba6423cb046f0d732327eb54574d4cf27687",
    "signature": "0xab6591574a00054245ba79f321d1ef9fb2e6e1dcab852c429bdb51c7bcf092200461c0e7e71597552a518f08312ca18a53f944f839a3e8991a55d80335cfd4521b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}