{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882582",
    "entityType": "User",
    "nonce": "0x591a42ef2b029da86025ab5118db4018d0d5f7886c92803aa4f0c65925df7e94",
    "signature": "0x275af86570522c0812c7feca7f4aa321e70bf157170b8a277c04c09d4f5083116cbdf5eae4009c2d5ad9d67fcb65e04b13e8ffabe7a655568075e8258aaf08851b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}