{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302887",
    "entityType": "User",
    "nonce": "0x26fed0602bf7901b25e3bd07971c2ad55a98b29de9033073d188962c3fc65a27",
    "signature": "0x9c5d3b6e4d57f7474ddb61abb883e76cf11b6f9b355e62b719d80b2b27f918ca344f7e113228c390d7ca72e89231c8f4d4db4830467daa36560a393429d2dc731c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}