{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121885",
    "entityType": "User",
    "nonce": "0xef20fda64b2ab3e21d5111a44fe7ec4a13545dc48062a40703f1def07e98ffb8",
    "signature": "0x664760f011296a0be37791543586f2f99ae8d2c20ee2b41245859dc4fcc98d0d46565efd1d6f4d22a3b243a85849469937486ab26d0383770a7cad0ae17db7f41b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}