{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297394",
    "entityType": "User",
    "nonce": "0x64023330e610ae84ada935c60259b12b0c72b0244d638c8d35b99086c6a5336b",
    "signature": "0x2576b891cf3832b3dedfbae35a86c59f9b17502d35692a0f915f80ef018bd11f0ddefe3e076eabae46e0d2bc859220baabd5114b7eaf5e62ec1062307f6e34661b",
    "signer": "0x07a178094dfc39Eb07269cd3a986dae2Fe0F037B",
    "userId": "612072838"
  }
}