{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa7ff2758d4faa73b0e4e1a5d43a5f47b4d0595e510be3194852f0e63a0da1457",
    "signature": "0x8c38c1ac32b5978a28d3d646e25122565b3db82fc390a6e7caea721bb3c8fb824b777a312b5d980403f4836dbef3b1df9377cf4d3ae26dbf461f531095d36b001b",
    "signer": "0xE0AA179CE7734dB44adAfC7cc81Dd990d91BAf6E",
    "userId": "806631604"
  }
}