{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9ee7c70ed6783c5b1eaa04933e30552707889be59a50eac633bda1a8aad1c323",
    "signature": "0xcbbd3209a4e2fbdcfb3eb686397c3478ab85059b4a6daea9883f24021fb96a63233cf5129c4fc8400eab985702ac13666b139f2f817baabeace33231905cfe3b1b",
    "signer": "0x7e2Ae0f55c971E931E1Ebc32d98B5B31B24Bd301",
    "userId": "277960832"
  }
}