{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "810146956",
    "entityType": "User",
    "nonce": "0xb97b14c5a73f2cf1e60935ef3a47eb272769bfc7b734a5817b0c6caeb5012448",
    "signature": "0x257645772b9af4bf498bc3d1fb87323da41aae44dff14c837e2bbde576cad03479be143bcedb2022e726b98b1d30ff99d59cf6afcaf813db6705032618cb32661c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}