{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "801898123",
    "entityType": "User",
    "nonce": "0xf3b5791c68c038e7222c8678db81f2d2ba2ce9a97949b4678d9ec9e150664cd2",
    "signature": "0x871a622527fed51d5fb8457ca516edc691c04350d3937b46ad99f65bad0dc57c106ee8e3c9894361d295b0ed58c290b00a249bf87077a892326fedcde1c2d5731c",
    "signer": "0x295d42c1Ec705E3D11f260aD4B7D830bEe2f15E9",
    "userId": "21998322"
  }
}