{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335392",
    "entityType": "User",
    "nonce": "0x84bbe89d6590ea1c8924da5d6a0953aae4f87ca033632d70cc9bb4dca11febc0",
    "signature": "0x174ab5a5ac3a0e5e53f44c204e30831c7525f16d6f10ec74ae246ab97fbd12d73026a3cefa278773f56ec8e1a7c8b4aeefd11c7ca541e8a65b6b49f7219347071c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}