{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111210",
    "entityType": "User",
    "nonce": "0x64527c65549f86b6ad32b50fc3ecf42071b814180f357b83edf46fa4666f3d81",
    "signature": "0x1dd620c54320de411c89aedd794924bcb6f37648a11e80f00a3eb61280423ee55653e0091874e382879907e4f4b6ff32e86efa6c7258fd71f647d9e6162c02971c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}