{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151290",
    "entityType": "User",
    "nonce": "0xc8b7ae35e5e177a934aebd35a310307701d282f0707f4d2b148d90e2d991b74f",
    "signature": "0x9fec3fae61393fe4580e34858da6c06962e370d024bad6520e453d67ba6984ac3f3d4d057f775a7ffbc6727ae5d5ee8e73b463d327048decaa730a4af67099491c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}