{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "905219052",
    "entityType": "User",
    "nonce": "0x17980df024e1cdf78b7a16c82926e4ef5afccdf098f5b761380c8df833c388cf",
    "signature": "0x761a82236fc70955630620edfcfe38c9311acc946a54d0fd632e3f5e386c4dec1e9810e51366b3ca0d293d795d9b757806a5d8264a45aaa018a81780072084a41b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}