{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "530432949",
    "entityType": "User",
    "nonce": "0x34dab4d992890da2f203ac06e14169304ab658c847fb811d1d89e948f927fcdd",
    "signature": "0x19af598f221eca66231aae104a0f2ec4e3c6eb0201735950e6d98b23d6750ecd40d311bea2f7af7ca7957caaaece2cc13f590a3a3bc7755985b3e9fd66d648581b",
    "signer": "0x4C0e8973cC8C5BB66d6627C8D489e336f0825A94",
    "userId": "939865626"
  }
}