{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124603",
    "entityType": "User",
    "nonce": "0xa5e56addd1559834c2966fb4e297ab90a95e1d30266bd4e9175baf8b2aae1f95",
    "signature": "0x03b32952e9c15c891ee907db1c5e469752145cbdbdee161c139811d6e29952516376f31a94133ecaa40c07348966101dd1057526b16e004ee46a102b8f3d9cc51c",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}