{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x27fdd98fd1011218cb27fe4a40a6557fbbf8c44fe8890cddfc05d67c9dcc44f3",
    "signature": "0x1af0c9eed80bc9f2898fa3558012431fb86ab1e9c30f613ec7099da9eb623e8c122582fbfc1206305feb9498c82b3d2da025fea2185bc67175afdd996397b5bd1b",
    "signer": "0x484BFEd124Fe5FE825A8837d1Fa28Cd1a4f57F9b",
    "userId": "918583035"
  }
}