{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951074763",
    "entityType": "User",
    "nonce": "0x72202b37e878f144d5b11dbf79198ccd2b1e6b65dd3cbd73f80dcfcf71274254",
    "signature": "0x7b020e1fc002296928caa4216fb0c35de7c31c3e3131775013113fd5502313f00e7ae3beda3703078da0a375f2b639a2d02fe2e818f3838f2175612cfb0b28461b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}