{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2052560",
    "entityType": "User",
    "nonce": "0x4c0f3995032792a0ecb856fb677b13138da4d4371315ea15e82612b5531b4c53",
    "signature": "0x2ca693d9fde730a425db13f1970059683141a2de6b5ffa6aa3371a84876b36a6631a3b1f4adaf459408661a73b756251a25892b361ae9a46ddba0fdc3c54c1211b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}