{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x751fe98c26ca7eea048a7f90b7c9ba990bee09961028dffbc47b1195e2bbfbb5",
    "signature": "0xdfee61b66db42a39554ea8a74dab697e84633df76c458f88f0b1228718910b79528d64d5c6a3dd3fa00bcb92fee221ab3166f14b34e10038f5b9b763d9d0b38f1c",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}