{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "975661020",
    "entityType": "User",
    "nonce": "0x52fc18cb4c0ec24ef9638861fcc4a117512baa4c8c2e7f959224cf96c1001206",
    "signature": "0x88cfcf16a8c618dfd23d4aaa622f7d5cc57802bdaaf0218c11deec642a9614744f45ed77afeda1eebb5fb0746a8f2ba7a54330c7c88544d50d6bf8ba2a2893341c",
    "signer": "0xeedA6724a44005BA167A1fcf0822722aB0C2f2dA",
    "userId": "984259712"
  }
}