{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151771",
    "entityType": "User",
    "nonce": "0x6f0214150e223c60009d1537fcc1aadb11ca240fb89279e806d1d7bc89a6dde4",
    "signature": "0xdd044a3ff1b0e2622bebbe6d18c0db7a1a94ad549f541240e5ab6bf7df68f3603a1ce31ea3023adbe7b747b850dcfe5a866af53db663d4176e7bc9e707d6020b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}