{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "944969758",
    "entityType": "User",
    "nonce": "0x759a3226be91ee1e5d38fe98ca74e26ca4ce47047559cf09ed7a72e201f177ee",
    "signature": "0x85074bddbda6d0c5209fdb141ab66e7a8ab05168b37cb1a52081a27fa5ddbf9423e9ee421f487f8af2296ed834cbaa0b32061749bb3b2d663f56de0a343fbffc1b",
    "signer": "0xc74a5C0B76bF95109EFE2119058182fD3D75EA63",
    "userId": "222972690"
  }
}