{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1248e2f42f869f41337aae10f2faaad8d8ee20061422014f7ec648cd4ec3f3cf",
    "signature": "0x84e50f8bfaadca6dcbff988c487e2f6b389eaad909ee2d90d32e2544de3af9c3117516cf9bc6416aa9835703f545957bb314e9cbfbcc63407b3f3920d7ca2abb1c",
    "signer": "0x09dBA96546d044732FB5CeAb9745Db0Ad3501E4D",
    "userId": "187770373"
  }
}