{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xbd44d22ff7694bbb62e675bccc37d55c56508d0850de0cb9ba19b6807ef508b9",
    "signature": "0x23b1f9a5c6f1cad61370be7c8542e1df597e165cce118a02a785ac360db1e98224af22888edd760797f7a94d0dd8ffb63e9e810814d1a4323846d8a309bba4bf1c",
    "signer": "0xf60BB43aa80c4c768ad1aD837cE30Be72F4e5630",
    "userId": "476392188"
  }
}