{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1930653",
    "entityType": "User",
    "nonce": "0x0dd3701dc952a51c3680fe03f3ed0ce10e1cb04c8b17b65d4914fb4f200d2b7a",
    "signature": "0xfc22ea54039af044a4b435ee3ccdc7130f9f2356442d2743f0d542d2fcd184c24eff1af41a8f8defc109acf341170be3c52e6b8c3223c7549030f3d7767238411b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}