{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "652074676",
    "entityType": "User",
    "nonce": "0x7e4233842429d2143559e84c1e5e5b0b202b871ffeaa1cb45f03c84cb01ad25b",
    "signature": "0xccc438f076df623b563a4f8e6bb58ab6d233e5bba09796da5a17c9d260994d0646a054b4a9392c739e24eb737fa8734a3d3759005a8635bfff99ee6f32ee537a1c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}