{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x52cc5edf13809c573c05e6d53792d647acb8db458178d9f0c0fb0a86bb5767c1",
    "signature": "0xbc2c4a7c70ed7dcd786b22b1ff1553227fe92f24a470d98583001ac21ee0bb0201862a721cc6f1b4f601febaf788df369eba8626ac63fe7034f7d7725308b9601b",
    "signer": "0xb4A0d67357A27C413B5930Adb975d62fF238D5Fc",
    "userId": "8989850"
  }
}