{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x41e275dbc147ac1b41921a0329c4b8f24c12d1d484ce74ca22943c42ffdb9c0d",
    "signature": "0x14d6bd440de939e058b55683e13d4eafbeaae298fba046f8536ce3ffe56de11470e6f2b38ef5624a0c36fdf6651249d6c26d76aa22023cc273140c8229a2047f1c",
    "signer": "0x1d3665a84dDa6cd4eA57d9b66E68602902cc0365",
    "userId": "922728721"
  }
}