{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "238125623",
    "entityType": "User",
    "nonce": "0xf9c57ee47f5fb8b2699c34c0dac6728a1493cb008564a95603373dfc5471fbcb",
    "signature": "0xcf78dea8e56ea3e84a6d3cd9a2671459b2f6e5bc1a09736ce2768c11777d01cd15e143ad86972732d4b2b79ccc2a46eb5fefcb1e53c4eec5ddfabdc07dafef3b1b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}