{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108930",
    "entityType": "User",
    "nonce": "0x022eb3bc09c02bed2dbe314cc9d07c007a2c8e58d93b70e7f1a0ec5f6d25b346",
    "signature": "0xf9bbbcbb92887afe0e8cf1c2aa3223d394fd2b886269482f1bb2cbc6a141f3935be350d9956d8610badff3a706a7f7b98822ed370a8aa69fc5d7f1649ab5b4ac1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}