{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916060975",
    "entityType": "User",
    "nonce": "0x638a7321b157550e28bfd13fcadfbf5ac09df873d37505fb19f6d9d14c50230b",
    "signature": "0x66feec3e4fe5737be38b4396709ff78da3a7a2b16db76a34b01cc86c5946edc978a261c0f6167f3383056987c2459597866615bd114b2ffccfbc5fb091a885b11c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}