{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x1b81d04a5563f9dcab80ec328fc18a0528cf2a43b7ddf24bebf269888906c789",
    "signature": "0x9f51c4857756ae141fe6285563139bedb7a5b0441ab8e6fcb532cfd6eff490b00ea64fca3d0df96262a014ca7620c10d0be4389afdfb835b76277c616c2637751c",
    "signer": "0xC08E08ED53fC9A2e9ea50727c7833CF8d3B4Ab72",
    "userId": "828936044"
  }
}