{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "977818143",
    "entityType": "User",
    "nonce": "0xb78e2f4236dfb2e8575b2072717313e530e2a6312dfed51a8c31bab6f10b3fce",
    "signature": "0x80bd3a23db07dce091fb6c235ede4fb95a68a4a90262b5680372f34aca63df1533426dacb9127ad6645247a997b5508e190fba4c83c798630b05b428ff1121db1b",
    "signer": "0x1ABf6DD41fe1E6b1C2d3A69859a25C92caa31b32",
    "userId": "17689"
  }
}