{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "756378218",
    "entityType": "User",
    "nonce": "0x0649c5d0f03d74946515077bc78a1c54245d91be3e9d431f47af9e64aa8ddd70",
    "signature": "0xc91ea9e4c8346ab1c112239f5c5c589883ec6754646aea3e2e6ba5a8413cb5c9505003f0bb2c96616e100a68f2bf7bed1ac7fd8386a61ae29096ab88eb763ed41b",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}