{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9e4e83cfef9444c809a9c01dda8ecbf1fa7fa3439f288878d06de29d4224227d",
    "signature": "0x256626313670b5bd3738a27a30ec3cb1a1b0acdabfe8b94267f5cf587852c7574dd559a00e7965170a2f9759be98aa812a1bc3be0caf97b660b55f786134ac8d1c",
    "signer": "0x48f44A0C4cf179A7630e4BfF1E557Cc8279Fd63A",
    "userId": "310734073"
  }
}