{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296963",
    "entityType": "User",
    "nonce": "0xb4f90cc8a766d496c532f926d53a15800bd56993fe0e38612e094351cce44315",
    "signature": "0xa0098b199cb581d2d1ef8b275f06e61e6960a826f61b69042819406095786b7e124660c15aa616ebafda655b5f6d9f73bf06c361f91a271359163230b30fcef81b",
    "signer": "0xcA4702d682b958667847Ae4eDa568D0D50eE378E",
    "userId": "412537010"
  }
}