{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1416898",
    "entityType": "User",
    "nonce": "0x8d306627acf61065c1e218a3ddbf182384439859d568133d6f32f5d072041e19",
    "signature": "0xf3eeede72a5d4cb1d216e862efa88185ff4debff70d08982428f83a6ea6bf42d5ece36b7a4cc37ec4136aeca0ec49d53dd2d4ddfcb4d0801da1fdfa77a06eeba1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}