{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb2389d20281e5b81d406aa2eb3e98832cfb966d154f258d10911f29f1c8f9c08",
    "signature": "0x94da729d09217af7cda3874b59fc85988ca443e5995e792ca2096ad989df6a0e41ada65598b30e5865488fe49afb93cf8823cde5b13dcbec9ade5b4b0f6c2b111b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}