{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140398",
    "entityType": "User",
    "nonce": "0x07a53d14038b8d76b176b8b5adb822bd477dff3dab31e4dd29614cfc5ad7e692",
    "signature": "0x83c52900ae77a7ae43340254da72ef2d1c9b5132e764c02289baa81e046f14c82f9a2858fff455e5145d4859c693b0fe488170321f483204ac8aaac2973739291b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}