{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "388966743",
    "entityType": "User",
    "nonce": "0x926b1d803a867a70c042363939fe69956dde1fed741e5ee4787057119fb1d8b4",
    "signature": "0x233de366aeb746bb848d3b9d1cf821f25a87b695ab1f255fe81717083ea7d8ff4df9f15030a67e8abbb3e60b1377622a9c57b8ba73b4f1cc8c578b7d34a652a71b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}