{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667809204",
    "entityType": "User",
    "nonce": "0x525dee89695c92d6b5e6caf41e009761d1f3785dcdb65d67b8bd3c4698d4463a",
    "signature": "0xd9d0f21d3c816efb535dd16fb5073db26c25c8ce0ea5abd3fc3334eba3b77ffc2dcdce9af6078d391cacbf64a801430cb9e40300695299a2901e487e76c6e3721b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}