{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe66aababd66aa6c00f63df30135b67a1ff4a5b61b4e3404d5f491ae02d709516",
    "signature": "0xfde367bd2cf6631a8bffe949c2b0d6b810efaa490f13e0a67bdbde0292d0803e5bd1cca969f22eab66bde16976af08101c474d4e052f89ff0254404ad690996f1c",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}