{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59868",
    "entityType": "User",
    "nonce": "0xe789c416bfd5e4cafdb5d13d22dc19335a7e70cdd4e9b231589c8b9c3a39284c",
    "signature": "0x900a40095f726676979d47c8542d26940f472d8bae47ff34360edfc5bf202d3b7eeff9855a0268bb51970c65967f5723a071d32b3eb73485ef8b8874020bac6e1c",
    "signer": "0x4f6F1c2529c2Cd6d5084a73924689D2925cDB530",
    "userId": "482961981"
  }
}