{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa7a118ec71a5784f7ea065a0d98e065eb7f825dd0f415539a251a1cdb528aeee",
    "signature": "0x87ccab55b7986920e5132b8b04862028065023154e537b6e47f5256509a144e978e816a6e3b8bcfe1559953e7741ded3ba67f0124f250610f6b2ffa23ef307841c",
    "signer": "0xE332434EEAD275569bfF055ed558704b8E56dE76",
    "userId": "687605395"
  }
}