{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe33c58edf82f40062e19258d069f13b5435ee96ce91ba998da749f5bcac1ecff",
    "signature": "0xdde8b44b35af147a2a602e19a90fe385addc05db41b54c5d50294dfb27c8cfe53d1aa4d4436450151b6f12af26c6fb17810eb0e08b0275de96b9cb15ed1798011b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}