{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302716",
    "entityType": "User",
    "nonce": "0xa2af7567415035a50b20df09e7424422465393484fe1077d0fbafd70df14d229",
    "signature": "0xd20803ee64274e4e9c6e3ebb3fd4734d6a01ee2e7897cb32da21e4fb528d8d5970ef6b8f285d91cbaccc4ab91d99e96be2f6c33e441a89cf0e9fa48507ece9841b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}