{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "760091",
    "entityType": "User",
    "nonce": "0x8cbc135180972ec7134e78d9ec38737e41e83f9d16422ec0528f619a50677169",
    "signature": "0xa01c600f4d60c90e818f469869058064585d7f68877ed45726162316ce941a64613ac85fb2752ed8e894b2b4e46bb0a9afb2db2942f008c1a7fc184aef40095f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}