{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4cb2c44123d6399e44d69501dae8f711ea6da19f0c28dd187eb53c5a5558da01",
    "signature": "0x766b4987b570672fbdd47907dbfce79d51e997ab2946593068c583ad6afeebde5cb0d15573d3f461759eaf5de6fd39d12ffafe07d2e6856d3c6dc5555d8ef3de1b",
    "signer": "0x22b4CD814353E6e4a3292C4D20580e3F57d63b16",
    "userId": "993194611"
  }
}