{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139859",
    "entityType": "User",
    "nonce": "0x1755b8af8176f79d6b1b1f9da4853c144533df47e3c440fc854000d6274ec688",
    "signature": "0xbd62b6dcf283bc85b1e3aa757bdf16917348ad7552937971ef20d844b7db196a79c9d4a3311b54c1d77fc0ddc3c026e035b2fb73b824f65aa96b321906b0703a1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}