{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326961",
    "entityType": "User",
    "nonce": "0xd2c0bf7b76273fefc0c11b71e9dd68d9d52f84be26614c81a3c8c5410383d469",
    "signature": "0xdbbdaeb72b751c87f934691e158302574910f713cd37672c14b6c409e5872122404bcbcfd8885d36b0dc665141b1bd001053737e1111a69e91ad80eeb4914d361c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}