{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "733102958",
    "entityType": "User",
    "nonce": "0xd4affeba0349521b05f9b1df1abfb0429815cbe7f92a0342e3347306f78164b6",
    "signature": "0x63b0ef289ce05be6bef6721cda2812636cbd815d9b70e4ddb42fd746c37695af5fdedae955ee8a3029830b44d52d3e5905ea4e3194033eafee66e357087628681c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}