{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0xcee0c8ef6a8948aa857fc80732094302de705cc2890af37a88e3f9bf2eb95bc4",
    "signature": "0xcf14093daff4b6dba5b6366692c959025c315441dc037ff09ee962e7bd971dfc4b6dcfd5afda0a2a33ca9c642b1fcdf3a50d400cab2dbf6fccf362ab601abe8a1b",
    "signer": "0x5FB1dF0c125C1F3cdda251a598Cb878a0A390F18",
    "userId": "25189733"
  }
}