{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xeb538f897a55c64fe5f1af303fd4fd306461a1c416f988c0a92fb12bbc36a495",
    "signature": "0x26fac507d812cae7763e80d67a94f672abd5fea7231f3ed23b030b087a9a52e93f24a250329ffc25e8e6e2fe303ffd10e6c8bca6f763f98cc4390069e638d3941c",
    "signer": "0xa738EEE0069867D724b136d8DFc260e3f505EDad",
    "userId": "337739637"
  }
}