{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64363",
    "entityType": "User",
    "nonce": "0x7f677030660db2b126f641905600f43f4c14042aef847cf182507cc74396be22",
    "signature": "0x84c9f3541524c8f457ddbcfe282da2989f55abaad896d527ec8aa2e81fd86e6b6cd54e85c99904a2caa52dd3f69def4dfc522f88f8dd28a62b645e45281a01be1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}