{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "868892842",
    "entityType": "User",
    "nonce": "0x56e5c6dc0c79e7e262831258b32b44b9c9bb0e4f74c27551b3aa4e145b56eaab",
    "signature": "0xb827ceefb9771363ff29c9795fbf52232ec58c89cef93cf571d8348044046d616635e521eb2c68c16ea3d96119dc74da275662b1134e4fc0fbaab8f3bdf37f151b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}