{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "966718637",
    "entityType": "User",
    "nonce": "0xc766a53268cef7fd759c0b4124a70fd6b367beb25672ac509bf382a1fa8a7646",
    "signature": "0xbfe9dddd068e87b2ea64246b9e437d3744f0cb3ce8d0f70fe306d9efc58a2c7020bc19126ee9f163ceac882c256f0717fc99a526fa429bfc89564fb00a67cea91b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}