{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x0d5c818c4b3ecd729998067fbfed3b9ab114f321b4517a79910094d4b8d1992b",
    "signature": "0x7507d2e104544a25202fbc1526b4c7df2eca172ffc57bf3e12ce7a351897a6a95ce8549fd89fe7aec86f8271f0f9597f1a3ced9c5273d0e9e4e673b2638e4fb51c",
    "signer": "0xe480AE2342a07a3A8aC8270e47bAFA10582414aD",
    "userId": "734972761"
  }
}