{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10739",
    "entityType": "User",
    "nonce": "0xfd29d4fc755dcafbb7176f59166339084e676ba9726f4a842fb4b44c67514dd4",
    "signature": "0x2ef36fbfc10a5f1df74df38c7da67f45e5909d4083a416c9aa5c8a3bdb83d0f04cb1f646f0555f112a063fa43cb4673c944dd6d7abe0bd7e9f045e5e9a0c5cb11c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}