{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae5dcf2488884312cd5dae1f1642fdbfa49faf05ef1ba72f0bf82b2afc585e1e",
    "signature": "0xf68bd31c657a7f0bf2b77ca0a9014b44d9e29e5f8d6b1adf664ad5857268ed6722f7340b9857f3ee973be31dcabe6eced474e6e2e2987343a798ae54cfdd22b31c",
    "signer": "0xFf11BDf758Fbf6d7fEb3FDa5D3c58F7E7C720fA3",
    "userId": "49482808"
  }
}