{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa3b30f0a3002d7ebced967484df764a76c78fb410fb57d460e6611c77ffda54c",
    "signature": "0xf876a41f757c344376f5266cabbd8085700f44594e7b9316387779a5400cb59711821145f6619e343a938f9c01e0b405a8f15e6084e4df93a43cbcb608f075511b",
    "signer": "0x4d6701aee41cF386F0f1Dc360F47F200983c6c62",
    "userId": "454478631"
  }
}