{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61300",
    "entityType": "User",
    "nonce": "0x75d9e0533e54d3dadf35892bf3a3bf5c2b5aeb55283bbc62397d830e7dd215e6",
    "signature": "0xd8ddea4a9a8f99bf2fb43be2fbd101b9d58c56e3c4d2d4525670244febea95d520ec86a1301a6505b55f9cea9ee5836ff1fcf81f2b3515f5d2558c6db55618051b",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}