{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "35251",
    "entityType": "User",
    "nonce": "0x7a50eda105c54714dab63f0413779f6bceee72e79be608f1445c4b0718190ac9",
    "signature": "0xc4ea3f9158cbc116fa987a8d0c42908f2c3221dc73241e06b53ec63a4780d4273087f1315581116f1a8fe0b3edf7c962b2032e96c7eb4a3529781ea616590bbe1b",
    "signer": "0x6Af6D40d1d0B48D79D2bd3E3c8f0a45540130c0F",
    "userId": "89433"
  }
}