{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7370",
    "entityType": "User",
    "nonce": "0x8d83c994eaddc8757f914f4bb7bb5256c382a66e07fd40fe99c0f62321b856f6",
    "signature": "0x74ca953756997fad2a1c4afab241734da87e593c7283ae0b786323a224ee579e32d336f25afadaa74c2982ccf53714d56c1adc7ba625547d621bc4d9580ab84a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}