{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81551",
    "entityType": "User",
    "nonce": "0x4e5d7558f16d964c3e5d6073036b85315f7032e211e6f0b475a8c1db84f1130c",
    "signature": "0x1dabbca0b3d5c40f24e34348457ef90b17db7d6429fcc165586e79f48debdcfe4960517aa153b5e3ce6b3db7c10576917ea12a416a6593650fd815e982040ad41c",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}