{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "592353919",
    "entityType": "User",
    "nonce": "0x54eec248f5169cb74cd2b64ef22a83fb815f09b7b804de8589200fb0a0cba30e",
    "signature": "0xeefc583dda3d4b18d16e68f73fc476f24488f369e66c05779da0b744f7fc557e312cc6313cccb1738db339b4f710e65aec132bf7d0476e5995ac516fe42ad2191c",
    "signer": "0x1Ef5331d98352E3A7eb4f177ae6BbD27cA99eD1B",
    "userId": "771602835"
  }
}