{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8789",
    "entityType": "User",
    "nonce": "0x16794812b0b4d54820ad918ea1a87a6e6e0579ccadfe6e0b624c34078d57b37a",
    "signature": "0x06d889a176c6f4d6ae08e0dd1ab971588a5f64cbeafafc54fca26f2354de353f23abf33cc4692848f6b53e4510d0d6537abc452edfb4eb710ed0cded8e2a7a701b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}