{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42617",
    "entityType": "User",
    "nonce": "0xf8b0813f0f424caf6023450252fd3085de36269833eed0ab08f260e280eb480d",
    "signature": "0x18496c83229600cdf0577d824f6f0295ad3b80981c7b361936d683ca9951deab5c57864ba4c0a38cf596e52694c73afe0633482057aa258d2a90c562c76e00311c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}