{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "474954",
    "entityType": "User",
    "nonce": "0xbb468912f9df44a7718e450b05e2d62f2423dcc9d3688dd454bb8a46ffeffafc",
    "signature": "0x8b898753bb2bcf49eb68f1e66edbb5923e8039e3ffe6e76d1f9a6e5b6129cbf7482a20e70b11811fbee3813fb85a19cbb7f988a3f722bcdd808a7c14eb771cea1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}