{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27766",
    "entityType": "User",
    "nonce": "0x12cf8b5d72278b970f545c366c9fb52311ed168e5d252936bc833ebefb75d7e7",
    "signature": "0x1cdad2649c2221f40c5e02c953599fcc0997dde9beba6849690e8ea9eb46c8832d0bb5a459054148b599b5189f86f5f1a8b551b69d83f171dcdfbc4aa6e192d31c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}