{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451684863",
    "entityType": "User",
    "nonce": "0x25d452b63fa082b0ad526f3cb760af0307c7c9091163895a3782f4fddd50b587",
    "signature": "0x57f2189b833225d628f37909c8549805c005a7408a7caf47c4be98d9dead0b9736595894c655750a6031fbb00835bf641c29289cf4a25d233f7b9570490d07351c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}