{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "393898450",
    "entityType": "User",
    "nonce": "0x17535ee89048969eabad30a2226c1b5c3722c3f094698e496875832daac07d6f",
    "signature": "0x5d7bcfa66942d753a5dc71033b2daf9beab457877fb57c027e8f523c866e19b06ade42d2ecb7ef1055d89d28af9995dcb8d28e28a9ebffb43f557553c8c04d3a1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}