{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "505028",
    "entityType": "User",
    "nonce": "0xddacb1d93946d13d8512f98891ab7d311b9115949eda575f69c4e85bc57677e4",
    "signature": "0x23b87ccd101048281216a2333c784a5b635656089b1c22fabfded5a6507d3baf556842c879df4d4dd596878d686a38cdf2abf2261a8a7d5213b053226a2f8b771b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}