{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1886232",
    "entityType": "User",
    "nonce": "0x9a83113148d56d5191eb8611498a0353bfe79a4357b99cfe59b9aa9a9f0d1e0b",
    "signature": "0x9d5c3db6b3e4dd10e059cce00e50d4a02f0e60bb31ffc5b8b72c3740ea92a34b5955805981c5c10bd783598e506ec75c7dd8f6ecc95854998e7cee2e2f389c2a1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}