{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x477a4f8a682a6a690d3c7bfcb31c3e8724ee42762da71f5518a4183a6dbfa512",
    "signature": "0xe1c22f8ca475f31bb62155019b9cc4e7921412e10a2c90c778bf4b1805bddaf24fa9614ff79b219b7bce8904edb238ee04274296e96bfa2cd5f4d6cf5b6f98361c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}