{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "891872974",
    "entityType": "User",
    "nonce": "0xae69b5df4b56b49ae6e235afaf23194860e69dfbb569c4fcbe3179c99689e178",
    "signature": "0xef9b53ba2603d65432a9c1f2c3029027608e9ea9fa8f13d3e267ce7c997fd10a2d24205e55248f28b1c9fb16108279a93ffe5948e143b03bf1cb3677400ee4821c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}