{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa13950dc957c326049d434c9c6df3f46d4ddbec09142fa3a63c484659dac450a",
    "signature": "0x519aec4c00fc2f407e6e6bc02bb1ed8d69744b3be753d3cd63f043a9f36728562bc206e363192e5be596dcbd6564b4539e6292528f07ef90b4e81f71b3a969161b",
    "signer": "0xcEC58BABe2B4fCEE7f4Df16a26Aa65679EbE8114",
    "userId": "693166468"
  }
}