{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2515",
    "entityType": "User",
    "nonce": "0x61a79b33bcda4f4c0b0bce66c31fabeb22b0dcd250cb7c02c88db0fad5791d6b",
    "signature": "0x3ce25c940c067e5b57a140107c4312816a543e9724453c48495e9aed9d31a73f2f32031a1fa1ec58efcf90b73acc7314bef0b7a8f0dba0adc9d078f6dddb97641c",
    "signer": "0x4349dfA3F149C54E7Fe9500181cc623FB315e924",
    "userId": "426399693"
  }
}