{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148293",
    "entityType": "User",
    "nonce": "0xf631de5980be300f654efef980b6eee92b5620cb6c591257f9e1854edffee463",
    "signature": "0xfc630f44475a1da874eb9df5e08c720cdfdee1e596b0c84646f8bc3bbeb402601482ec85aaf6213e5f64a5197847e8076f8ddd1f5404a946cf6b05e9ad2c54551c",
    "signer": "0xc2d9E3a4ce93a3bA3F13b18C0b26ae1D9325BD22",
    "userId": "259260651"
  }
}