{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x381f3896967b56d847329a64e18d484184e4e6079cb3fdbfe0d826957be5b46a",
    "signature": "0x65f1b647a46e99c6feb1d13da4eefd93d81f8db87cddc36251c26cc4dab6cd431789e202f2a76894925329664408335f667e8ef962b93fa9ca503a31ac6cdf801c",
    "signer": "0x73EeD6F2abD54edC194B1af96eE10A48DF993a6E",
    "userId": "116702135"
  }
}