{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "324297",
    "entityType": "User",
    "nonce": "0x220e5c53525717b6c7f460749af9b832c9a9c1f8f4ffcb29b6d853ad7ebf18d3",
    "signature": "0x58bdd1bf3636723ece92bc9776877ecf1691a3b5177e9b115f7d1e7903e6d6e7587607c0378ffb25c6d4948c30c8500f2365af7d1671f92163505f32de6af55d1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}