{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x5d39edafce095f699c89217cadcad9af6748fc20e809dc4a746b22955942d700",
    "signature": "0x3de3f0fd97eac5cb71b32dacf7f68e2ecd138ee3074f50a58ee79310c05e325c05b3d6fcd69b2462a124f3ee5fef3b1d4aa86fdb08d3ac7c7a52ef391970631f1b",
    "signer": "0x0E1419Aff1544Dde5c4eebbCfA208Df83ACdE40A",
    "userId": "564626302"
  }
}