{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xd37d0fe200a638eb73de11b49d4ea71b1161e44ca4e88cb27aa0f320c97a03c5",
    "signature": "0x0e79ab5c01450a40a8af8072293466ecd8294b05b18e373443ca55664763816464b5ce05b7e500f738feaf26eb0627e667d8244704efe40dca637483700f042c1c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}