{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x2ae24e5d75e141af0b10e4135e023881fbca164d093df998759dc4ceb9a04a4d",
    "signature": "0xe448cccf452c94be8320a944fd54da86d1471d062c56ef3c0c3a25a1bc44f0b55825a128292ee0cc0e3bbd3d53cec449cdb2a63f04b9cdc3fdcc58ba0ea8a0631c",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}