{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571117272",
    "entityType": "User",
    "nonce": "0x72b6bf5fdc3d215bee65d3eb35f6164d5dd4deb3cc28434b2d6ac0caedccc4a8",
    "signature": "0x2fae7c16535b2b8290d6a931c1b37cb402ee7186a2a89da400760704d44287082f09c39c1cc965bb34b4589c94cf0a8cb50ce98eb15dc1c9528c9624da1196761c",
    "signer": "0x80039Db0B0400D2699a0A8A5CC63821682080654",
    "userId": "580920017"
  }
}