{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258655155",
    "entityType": "User",
    "nonce": "0xb09f8daf35f03b68b0008111f8f8b8fb5dfbdf280fb83a3acc101684b57943ca",
    "signature": "0x118c9fff3fb3e9f991f5cb013ec3f789e22c52fcf172b348669594dd0b02c16c771b79736b5d7ed4000642f6691b1c2ffd1bdf74dbd54d363d00a534d89866461b",
    "signer": "0x0D29e890aa88a8dd37e712bbFA353Db83b8B5D7f",
    "userId": "547890227"
  }
}