{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "149566028",
    "entityType": "User",
    "nonce": "0x7756123e739bb2ce0514412f143c984d34fb3419211cafcbdc7c4416dab1df1e",
    "signature": "0xfbfca07140c24f4817fb372f661c91dc6a956bdb6da1b38e3dc0ff46c3b6266445ad05b11010e483aa30389e72ed5c47d1d3018fea52da3e7c25b9e56eb6555b1c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}