{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74427",
    "entityType": "User",
    "nonce": "0x30e398985fbe12695564e19c16e440637f2478cae57a461f1e91cbfbf627d2e0",
    "signature": "0x00ed6545138b1882507fb326f2192c0483a6db70b811ccd99f77744f11f7904a24d366cc01d7c95a1c3a6388da4c459480cdb7575e128a3fc25a2847ed4e89001b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}