{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x91054ed0c8b05e2cd64b05448baa713e8fdfc76768fc7794521154e0096e7a12",
    "signature": "0x85fbfb6499d8638c5bc664b7038f5b49dad375dbb05f56270eb4d1e991ddd6c25ea0c8bca1c90e89f0b3dd978ac3bc766a8ac233698de3c6edc30f8bd7ce894f1c",
    "signer": "0x2F55f68a6D874d95E4F8c2A7376Dacff6c7b8518",
    "userId": "546609624"
  }
}