{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "229238249",
    "entityType": "User",
    "nonce": "0x13d5be789e28462a7f3fb536b550468080b639cef9a6241e2c3d0c921ace4f8b",
    "signature": "0x08291f2474b886903070bd682fb8918c64c4046ec955a72b62fa25f6d0d1fc851cfb75e60988009d6b0168dac5c25bc92b0433d71a0075738d59ba146d21fd481b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}