{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xca29a278b7e40eedfe4ff65b1064105f70b5cba286d1f37dd6319a2db3e12eca",
    "signature": "0x8b78a3b431e414e32772babf00bb2c7656ef13d5c644f09b599bce8125a5a602390e88c40ed3f26e1f0b405b977ee44f0416b922735d311ff3c722f38a51fff71b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}