{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "569277384",
    "entityType": "User",
    "nonce": "0x1ffd5bd7fd24aba5fe55913af90a0dcfbf6fe9a83ea08e0640557611ab461a0b",
    "signature": "0xf308dea95026048620c27108db2f7640abe05cc6d282d31a39a2e7119fd64b3466c1360abf12dc479e466da493b856e45264b4781d224bf08e04bb19868c65811b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}