{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141324",
    "entityType": "User",
    "nonce": "0x93b1e7f9034cf7a3d08f6b0c0bf7d14ef0b8e5bfb2930ef0b712f6dafe285b9f",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}