{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "894582993",
    "entityType": "User",
    "nonce": "0x885f1c9e18ea47c9f805b60161533d3a81af6541130ac2447d83c367bf454b31",
    "signature": "0x3a3103ea9eac3316d54e12e7854eb0a5881fdbb42bbef944ad2728ae42d2ab39135c78d1e96a00f7ebc09bac23ddcf5a8988af4bca1e61bc34d46f813f57197d1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}