{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5562",
    "entityType": "User",
    "nonce": "0xd5477758855f2e4028cf296f3b3f95570613bd9cf91f58e9e928f586f9e40850",
    "signature": "0x5624f72fd8d1855bc97c48db10f37ed6b9c3e5a4f8e757d67f71fd1053efbb606f0845aab3bc571890b27e869706dbced6333d0cf23745b0a424fc117ce7d2da1b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}