{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "316100",
    "entityType": "User",
    "nonce": "0xaf603476dad0fd23aaa6a0ba3cbccfc1da0e9043ebe828eeabbdb996fcc06307",
    "signature": "0x5395388fa85a612f7eb7661085f0960a662c0dc18d21f5669f84f2888946fba1252f2fdad90c92a2a630979dd33c834779dc360da4d44c3d4ed0e6aa2fd540d41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}