{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "483873579",
    "entityType": "User",
    "nonce": "0x0615d036f8f715970a1c01ff5e26d48a16b3853bad5f516d8556d6369878d99e",
    "signature": "0x9d7c7ca1d7a46aab9521b10c308a8222a28ddce0c8deaa0d1c2f3b6493e9f1f41c493b5d10b8f6625e5f54363aa174b976f393b5e020f603aea563b1ccd6f7821b",
    "signer": "0x88ad765B72fb060B3adbae1FA44A6C64722E1781",
    "userId": "236177"
  }
}