{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "852967795",
    "entityType": "User",
    "nonce": "0x27f0e722f80a3e9eb130a5c18372a347c138b2fbb3848cea5e8ed10fb7703bca",
    "signature": "0xb98e8510ea37e7b62c616d07be0f63c2e0632db93cab48977f29db0077f840120e66b571037e0f0bb9790f0c625e0770f5d3f4076aede587f3ec89e5249700f61c",
    "signer": "0xb23FFd6D016E95A4022Fbe25C4a1179AF8492788",
    "userId": "990308344"
  }
}