{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43432",
    "entityType": "User",
    "nonce": "0x4eb66a3cc02336eb3a0797b9fe54242f343d806eff3657613886437448c3499e",
    "signature": "0xdc478252293e31ae27f854a31e1d1bb8fe2fa8adb8da23f21b687979e886b5a33af17a353567c59490a78342d4f7540461673d51981f596223f5ba80fcfe8d2a1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}