{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf6592298d564cf02906c3a6df7349d4d427a3169bda6305ce5b674cb95fb26bc",
    "signature": "0x4ca3734222ca0fe7554ace287e18b62f7d083b4b3a4bf7898e3de6183f775c1415d6b767df5f4d9ec321476a332fac52ec07eb6b091b915355d5eb43dc1540b31c",
    "signer": "0x5e9dAd681B2D46bBe369ec87B0FB5660F8A585d7",
    "userId": "808075447"
  }
}