{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x65ce552860926a10a67b21168ea15efa49603e0b1baba7c07d5a30f5ad9ba0db",
    "signature": "0x42b2c5068063dd31812e576987441125be99b2845fae6abb7e4f456c99b1ab8119a88ae9063bf3ff40f02c31e9ae0ce5f27de226a002414c1a5001048354bc341b",
    "signer": "0xab97052A857D6227f6165BAc2708432a46C287fB",
    "userId": "159597058"
  }
}