{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "461949730",
    "entityType": "User",
    "nonce": "0xb466fe07a72883bb052e0e6cde7081f9e88ca607ac2bccc44f0e8124c125156d",
    "signature": "0x6e6fba932d408d68c8f6b7b38dde1033a372127bad4df8a568792cc505f6971c50496c703a9df49747432c8a82b8868b8b22a98809176e4549363125a378c46f1b",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}