{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "69503",
    "entityType": "User",
    "nonce": "0x8f6a8b2d2f0ffd12d3a9c4102b354dad790ba2af0eeddf152dc93121c08f0828",
    "signature": "0xcc40188897cf9259d18b0c1d256c2310974667b9e5234fc7316c21607428dfe0004420ef5a122e68b547c5384bd3dde62e41f07be4ebad92f797d38bea4ae2901b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}