{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "602084182",
    "entityType": "User",
    "nonce": "0xff15fda9f971c061bffbb0a19eb6c7a52b791aac9b54b3d168daaa19be18c19c",
    "signature": "0x40caacdfa3e2128dbfc611cbc976035e0eabe0818af93adb03caf59f9d6ae4bf0a15b65b94abcf47ff1471f7313c2ec342e6cad40f4a44cfc0144e91d2825bb91b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}