{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "751451",
    "entityType": "User",
    "nonce": "0xa24d326356f7f85a562ba4ec4df8d30f43adea58c5844822674307e859c6ad59",
    "signature": "0x803ee162c5d961e93e11b7b0c0d9b3c2128f05f571fb4ee9ef2a9650b193c4562d506a55a94c19c794e48030f345b08aa4b668385ba48f05e456216b09a8e5b01c",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}