{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43309",
    "entityType": "User",
    "nonce": "0xb262b33cfd9650d3008dbf01d5fd4d659df5d6fd5ac090e2e8a5cf660c0d9d72",
    "signature": "0x40fcabbccce91e575ccf64ca52ddb38519997fdb4ab7a752f5d4c7c3cc95811120a60af2806e00e6dc715477a0ede49b125c7282310a38d369e22112020270d71b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}