{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "214659",
    "entityType": "User",
    "nonce": "0xe19f3d5b4ff8982032fdf0fc527b37c6893a9f25d2ae6bde9baeba9fa4efbe85",
    "signature": "0xaf7b34fd30e3962275b84cccbb0d044e61d67b710ded0963700c3b6434e2f25f1d43b0f15e22c64d3daa4d0e9086b4dbc13ea5e3cce9cb2cd40200470b290b721c",
    "signer": "0x6E11F52c7f1E64Fb6245B70FC4D99A94e7a4Cd8a",
    "userId": "505017427"
  }
}