{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "198256",
    "entityType": "User",
    "nonce": "0x09e6bcad2c1f5763e669f711acbba6a938246103432b9966a9b87cff45cb5ae4",
    "signature": "0xa561c381b7db2635e24199517be15241f80fd0846877683838147c1b432bfd9e3b38e83adbb047388accd2115e771898834da6c3b39709f21f81d431f0da82141b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}