{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "419264132",
    "entityType": "User",
    "nonce": "0x51893fcfe543e6cbe2f402e1c9495348d1124fec160067413f3b7387efe1c3c7",
    "signature": "0x99c73e3efae93bd72766402bcb16ea3d015530bde61caf17a5e009dd80cc23a0199d76615d13a979b48ac15586053e716658b9f2b3a17de2c8de42e53fbd36371c",
    "signer": "0x4e9F0427a09a723436C5ab3663eB7588fb244Ac4",
    "userId": "244131384"
  }
}