{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa1b7cee16d05fbe6dba906fce37c848ebccbeae2b9792d6596b38d6349e7ff49",
    "signature": "0x3f65f35429d52854e9409a26b12d3edd20bba6579cd0b992ed3caa5d39da9034054309f57f16543465c2eae5bbbdd87e11631a3505f80b80b1ffea0e0060b20f1c",
    "signer": "0xb30e0Be35a597525E799dEf874bA634D3870DF3F",
    "userId": "762937682"
  }
}