{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x2dd6217ba26f81ffbfeec4c826851f0d18acde0add961ab3c7e9aa4079b17bc8",
    "signature": "0xfa5b412dfa1e639610bc86dc9e2f002a9cf3efc42da9cf70cfa46c5e80f0104c3c2bcfd259ac115f166fbcbbeaee706887cada10682ee5cfa20e1e51e08824781b",
    "signer": "0x2C81B4feC34484F38A9D770494d7D51184A5b1bB",
    "userId": "780483387"
  }
}