{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341",
    "entityType": "User",
    "nonce": "0xd39afec5ac4ec7cec20d04f1cadd1ca07581eadceca2fc3ccdb5765ad1319067",
    "signature": "0xac18440b7b23ecff679a3b1c02a6b29c7f2d77e3b0968cd886702bf26028ba3e367bd9f5d6bbd666d93c8532201b6b8269718d51bb9b664f30403193a9302b081b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}