{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "670307808",
    "entityType": "User",
    "nonce": "0xae1a8fb6de25548efe7b8126403fb2b084f071e47326b77c0895484b66bfd110",
    "signature": "0x01f2594f399aaae142cfee20b5dd178831ba4e60365766f1f0f4703ce595e8407de2d95c603a0a2eb4044ef020376f3d3879f8e7be04e7e95cb6b5a5619f243d1c",
    "signer": "0xe64d995c4f4919f3F47574BD9Bc28505f0CD7689",
    "userId": "253160273"
  }
}