{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341554118",
    "entityType": "User",
    "nonce": "0x7fbfa00a709d47144681e5a091d2a73dbe8b37d57cb471a644061a7ec503d53a",
    "signature": "0x331164b2a668e57b2f1b58c1e2859cc2c08bce3dbd93e98b88781e267b9122702deabb139344a7b3cb543aaae853e4ad0b63956429075f8003371622253b190a1c",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}