{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0xb29d85db93e8e1c6eaffa4a7b58b5034d7b875be0494acd70b3f83c4c7f4b332",
    "signature": "0xc81dd5679507d07b92ef29cede68ab72ff25719149bee98d15b21b4b1b20a6eb7b83d2261890973513c4f87fe6e8bf1e694b7d9b6c2e9db06bec0d5813c1f39b1c",
    "signer": "0x134f5c1f8716402474824c6A0AE855af1E3053eB",
    "userId": "462352719"
  }
}