{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77401",
    "entityType": "User",
    "nonce": "0xef344b170d58affffa27d8922f6a2ccd12439368be812a18db81ea7fbf24d4b0",
    "signature": "0x4e2b81349a4425f36aeb584dd91e4735efd4d995ad000b7a323dea3dba1b5afb591f9defd0d3286b5be2fbc9b37f85ff703d1d06a10dc316f1f666457bd47b401c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}