{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbf99e4be08b216575fede6197456c0852a8a5c372642c47ea727e0805d65c031",
    "signature": "0x7c0313851258c75965499641f6691151cc1e1a18d148609986ebcbc26d11f4ec0aff4c226b317be8784e9a58af776ba2df5359811b00b4c8bb7fd714150c16d01b",
    "signer": "0x52967526D0c703Df20080EBeA5e960D503c083d6",
    "userId": "354430347"
  }
}