{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "418876483",
    "entityType": "User",
    "nonce": "0x6b776625374abbe8ade36479dece5fd69ac7eeb575f1571cca633a63d78779c3",
    "signature": "0x89f28505424622a22850ece91443eff9b5126d24937d744751c7b74c91fbb3ff2b93f01cc7f3d1a11ef27ffe8f10a661ae9fca233ce55f6141fc602cbfee9d1b1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}