{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "68711",
    "entityType": "User",
    "nonce": "0x8d820a527f62230f7c682b0637402a7fb40f0d6c6bb3d01676bcdeded3f1f6ff",
    "signature": "0xc475f36617fc657f59ce0598be6dbf07b65f6b60e203a559880bf93b380df2eb3eb8855942c8a60e523469c9719e57a646891ef131ab0f956d182ea57cf2e3a11c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}