{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "392974119",
    "entityType": "User",
    "nonce": "0x51c022b30f23438b98dc66df76505989f303bf28096746ca02a948d172270b46",
    "signature": "0x566ff77416ec14769c11ae89c012b1a6836546ff824e5f484c0e90a26765966000ee11d40deda90515ec48b88b7109a42a5cc667c4175cdb29f1af6d4d0b0d551c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}