{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0x5801eb5e20be28c47b6f35d24ce449fc55c319d3e939e3b482b37011681a8abd",
    "signature": "0x45c9474c8546e1ed2e4c3fa1da76a298ede8691b18c9fb3227af2fe0ad77264d4f80654181166ec9ccee4090037e5171c4c8f06392a8922476512b1f501062861b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}