{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108446",
    "entityType": "User",
    "nonce": "0x100c94fd41d0b807addf3af021403b2c66d6991b66134ae408a826f5841795f0",
    "signature": "0xb38879b78b5b06d381b71194712307b34c27492a80e9a95b11c1de03ee1c9f3d0f887cc42823a853862ed779770c4a431cd49074b3e346d5290949faaef9e2b91b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}