{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x194a76741d93dfc76a9d3b6566fc55f3a5b1510391031195a40080977da2503e",
    "signature": "0xb268ebf208a88798302ce65448eec5914cd842cbeeaf4d38553bf92cb5ae4aa67dc5fc27208dd5ee4f2afd7bba26b52059a336c27d214cfbcc00995d29896ac51b",
    "signer": "0xE5C4ef3FBC711217Fc26eb9e11b62ff07b4171aA",
    "userId": "156613390"
  }
}