{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139",
    "entityType": "User",
    "nonce": "0x8c62a885b16a8f75d64c605326c992201fa6bc31029aada8da4b694ce945de13",
    "signature": "0x66bba016f02330739f5204afa225822885ef5ed7ccbe3eb27c655c22745b940f7dbf509e414326a2938bc900bf84d705e68b5be59979119d0b54fb12c010593e1c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}