{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "102419",
    "entityType": "User",
    "nonce": "0xb0e66c7fcf6939df1b38bc36e14827d98304db2990667292b09a8d0970bd3bc2",
    "signature": "0xc11f87812423b590f9433b4904e54f8d039958ae594da18f5e6de9d3b7c73d1f2427e3d96e7df7e0d5d4a34bd4e421fffdcb2f4afe99222bb9d05b21464b72741c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}