{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x5c7fa31d9c33f2b22199898f20260e8750dd04c266d100de6ff769b4a7d88ebf",
    "signature": "0xe7282056178629d3daa172e33d9de827f7e60f89d259ac4fbfc57f68b9b7084f1b61cf21e2eb6af959887459251ffb3b483c79f452506bc0b18567601c929a461b",
    "signer": "0xcC37fc45282182aFe751c3a765f808633C4cAAD3",
    "userId": "810291807"
  }
}