{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "237750",
    "entityType": "User",
    "nonce": "0x2ebbea706b479a831f3383e30359156e7c6ae11686e19865b9286e7ed79f814c",
    "signature": "0x860b0ac5985a824093d4408848f52f408d992476047731066e707afb607f6bc87d36c1427b788b2c0675c60af529c1c993e33b4d826c16a05610e2d3a6239d6d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}