{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305838",
    "entityType": "User",
    "nonce": "0x73b6123bd5d80349823aa1e8ee0ad678777abc09ceef7b330b9a34ceed2e21e0",
    "signature": "0x00332cc22504c1f964afa2daebef1a770675da254b7942be988ee10437f10abe31a90c65c7eab9e8f9e6a736ce76df9ba90d0d18db14d8be6a0c92696def4da61b",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}