{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30390",
    "entityType": "User",
    "nonce": "0x1bc52b6e32087ecdd3897a27773e51b8c5f176724f5fd2e40a3e1d6edf751881",
    "signature": "0x47dbc9522b5513e5bdd1f2e5f223e2b0d1359357303c002197ff46d5f7e8f12810b1557b5b39715daca042839406122445a4ac2577e9f3700a2a46e5a7fe06aa1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}