{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40986354",
    "entityType": "User",
    "nonce": "0x758cdff31aec553d7e3906a85c6cdfd6725258d560ac0b3697ed6853d1c9af59",
    "signature": "0x12125abfb17eef6ab9e4602e1f3bb9fe7d5ebd7ae42fd1b6d02c7794f52a20dc573f3c9e2d870175db1ef5d4ab166351e945a4766e79f9dfa284b18346d6e4ff1c",
    "signer": "0x61aC959C6029A2Cba66cD6B9AD35c9d7120DC52c",
    "userId": "313708333"
  }
}