{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1802940",
    "entityType": "User",
    "nonce": "0x5bc3d3582cfb5513ce961583409f649814dd966e5f9570347c7eda99a869cb71",
    "signature": "0x588d0f289ae079437c04c96725865fdecbc7f04d5283786e084d951aaa4669dc132bdffa90d202ca5048af2f70637550a5241732db667198f85efe98ce9a11f31b",
    "signer": "0xb9160bee52F73DAB98D7cB3210d24Be59194CaC4",
    "userId": "319969"
  }
}