{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "956403",
    "entityType": "User",
    "nonce": "0x77701b523b082c27f5331f47a89d5b2cf0aa55c6a13586b508df0dde54d61e95",
    "signature": "0x9ec2597cad46a1f6ae0133dde382f8124bf9fa0b3e4f48cb63fb6419798266ed056a17ede330372126104f5f317be6ce7f00d90db78539d28f1634578f5fd2981b",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}