{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43431",
    "entityType": "User",
    "nonce": "0x975e63b2089012187b7c9f9ff62d1674a0748bf50ca1ca03f7ce8b0ca8359930",
    "signature": "0xd945f29f12bf5c49a609e3a3c0930d4935d92714ee48beeddaadb2b492ad975d4a16d636747b4881abe0b7ff66d5c92b15ac41bfdadaae4044c0667bb9a88b611c",
    "signer": "0x01B77D3DEE1604ED5Cf53774D367c4Ddbb0E7191",
    "userId": "13981074"
  }
}