{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa6be447e3f6020406387dd3a53a6b9563dbb0a186b40b6a7acdc035c1d84223d",
    "signature": "0x18d7ad119fa1af698da82fe20cfbc136e349e30649414707a843f6a13e82201d7b3e7b09ad4dba74400aa4418357cb008bfc88353135fd0ac6f0ccb629e7b35c1b",
    "signer": "0xfE3c757e8C87133a9b34817c2C0Cf95daB567C83",
    "userId": "669595092"
  }
}