{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346509",
    "entityType": "User",
    "nonce": "0x885e648ff9025657b36c0d0d478c74f9ffe5724b5fc41623cb7f744fb89fcbc5",
    "signature": "0x8812292c4cb69ead1cf4c380708697d8511b50a1de35327b10ff59cbc9a2f56f536a8d80608d1b32bcd82ef6e45c65f97efbaf4d43c309b2948458d90fe56d8e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}