{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "76666",
    "entityType": "User",
    "nonce": "0x35c903cba14a6373c62d1a3d156090295a139bdf3a3899ce446c6534e7ba2673",
    "signature": "0x5b3de6190331e7e21d5fb24ede42fcaff9eb277a636b3dc0a9f9035de096fcbc7aabbeca6f3099d81eaec5ace4713279509afc94c73603c775ed4b70bb1ec42b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}