{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "216497",
    "entityType": "User",
    "nonce": "0x86126e2a202e326b6e469f54e76ecfeb9f47dc6c6822cf52bb6d7c7c0f4a1014",
    "signature": "0x445b135e2bae0e9e5ca37d9a00fb8ef0bd0aa48ac7185149b99c26269771b0dd3f75f2af75767c33562c6a14e0c16a1fa325b6ca7da82f7c6b80c65cd57233911c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}