{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "366918",
    "entityType": "User",
    "nonce": "0x096ff409a83deaf55a7d8b6d2a5e848405f145bd576634c3e90b9c1466a092f3",
    "signature": "0x4e7f3686ba618abfc4961558598727ea128d9aedd84a70d44d34e6d47efd748b6af15eff14ba8252566bdf523674e2b260fab7643cb2e1d014b4f3be36c410521c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}