{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "956567980",
    "entityType": "User",
    "nonce": "0xf05dff37ce47a5cf2cf6fc78670571228b6bdc095f165b07a91655b40f52db6e",
    "signature": "0x43ebca8276b9f3bc1bf74189ec5eb8fdbff5694d813f04e2c4a7bb39733e6a0137c38aa06990d6d1678cd5e89a53c52ed62e292fa8a577f6bfa14fabe585e05b1c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}