{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73670",
    "entityType": "User",
    "nonce": "0xa2fdec8ff8ce8751fa86bc083ef0bd65bc8b26a0fe1a718743f810bca30691a2",
    "signature": "0x3870624aeb1941970fd6ce653e2a8758560f611cbe72c5574395c4a189e159b07943917952c82b2c08652e43f43b71bcf282f99724754781f99a21a0dacf70871c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}