{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56",
    "entityType": "User",
    "nonce": "0x1eaf2453559847dcdfbfc8c72890c48a2f530d629dea60db37466a97b6e03300",
    "signature": "0x25a2dcae89654caecb330c5ed182d2aab4806a8e83da03be7d021028e43561e23fa138f0aea2bb58e48b12825ea8ca75851aca78743aa4beff083eba204cef7d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}