{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3ff9adb146fad1b0d455c88c83118e53a6eb90fab15ebb6a34fc9cf11a6ebf6f",
    "signature": "0xbead2a39f3d9982012de0c378aacde23e2f2fc2b09da16d317894b32377bb22644c0fa97ad455e86174ec5e5527fcd58da685b2b1c770f200abe1e9bed359a0b1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}