{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979988194",
    "entityType": "User",
    "nonce": "0x2da9326e2a21380268bd09004ff9090c697e431028710f962ec66e8ea0830d10",
    "signature": "0xeaca0b4cea5a0b1425d1e42e2e3ccdedb6fe780b4383794836dfbc10f3d798115712dad9a119ff1c78508a7cbacd6dd6b0c16b927325be2b6cf02035cf9b676f1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}