{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16487",
    "entityType": "User",
    "nonce": "0x0d3db621670a5fa9fe56d21ca196b5964ce519c7f8281d40bbe69cb70adfcd3d",
    "signature": "0x67d924068a525a4284826ed0c38e55bcf2b27c1c660175333323d41f2be8575771ee70f6ccd7009193d88a37f447f184270ff476e9cbe893b03cc63b73b513f91b",
    "signer": "0x9b1a9d02F213F5C768F11FC832194b5cB665E056",
    "userId": "418702748"
  }
}