{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x729f32eff341c5040aa935abd71f6c32ae62db1174b0c22d4fda3c547df0e97d",
    "signature": "0xea17dfcb9d508b326b527fced0221b723717640fd63cbcf755047014efa92b111cd93bc8acd942763c24de81582ab2db8c2f2c4302a7fe779e2567c8cc2909911c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}