{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0x00b2a2ba7e878f2089432537494b4f83ca74b74b178d41425a77c0ffee2eeaaf",
    "signature": "0x05628071ff816aa430c8e596db2142082665ba12fb623bb0363ac6bfa661dd001c2680cbfb936c255dbaae6e3ac15959e0a5a642267ff7d627ee06e3826ab9d71b",
    "signer": "0x9b6bD4505e2bCfA88acc8680F463a96DAddf1d0d",
    "userId": "213208842"
  }
}