{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc7a1fcafef47e3a6dec6fda53b7b3301baa4d3bdfbb2e6776629a47cf4626373",
    "signature": "0x4c8d4cb50cf119de3a57fc54f4de3bf37e225e2ba5e92e9f923c449f01756d4e37d4d7405c72081e77379f77fbe0510e966354db281a3139faac36da93a965241b",
    "signer": "0xC2C605dE67B97776E8bd5687dbBC8BDb5E8823ec",
    "userId": "725545426"
  }
}