{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "22234",
    "entityType": "User",
    "nonce": "0x66f9ca772be748e3f095ec0d9e52306f3ea0eb96465fc23bb44647dc1eaba738",
    "signature": "0xc80707511d7603062d279abe79ce1128a882964799392cc8f155da6ca2a525b20bed00d88878e8add31f7ca9b1a1e84470f35c398eb4691674b9f42dee558c301b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}