{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306102391",
    "entityType": "User",
    "nonce": "0x1abb9c28139a493e8d08e3841aa376644fa8dea67c8f3829dcbff5060654aef3",
    "signature": "0xaeccdb1b6db7388cbcf690e542c4a00555f573a81c8c0d79d2f95068126c026b6c7f2a71775fd8d007295eabc979040f402700e23b61a8a56dfc7f93245a2ac91c",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}