{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xde440a09ea7725b132b16e3ff0c3b58c30579d3e3b0d5ec10ae8fe0aebb084a9",
    "signature": "0xd75a2c392259fadfeb719f75295ab304dc71144748a6fede5800fd2969bc0b1442b1a868d2d761ca64a0b9d45f8c43b5dc4cc0438a9dc6c4175fc5e5a1ea00d91b",
    "signer": "0x61759FD9d69b6C29FE84fc39eaB6C50Cf7dCd8FC",
    "userId": "366953361"
  }
}