{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "995816736",
    "entityType": "User",
    "nonce": "0xe6a061e2faec2cce4efa424f0b6d22fe458ed050ace8e5fce866b835d8527f40",
    "signature": "0x201abd81f3be92556302ecfc6f157775a4b831a4e596afe147880809a9d1a98c452cd561ff6f731b000687bf358e2330f1da7b4c2349619ae97dda4ff7744ad61b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}