{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74652",
    "entityType": "User",
    "nonce": "0x9a5ba075230efe6afd40aa59dbaa2b4822b47f39e645aec845eaaabda1d8b09e",
    "signature": "0x7618e5044c83a540aa83cfde2f2ae875b970803b956a8b9647c20dcd2a0ef16b20369f3fde49f93c59225e2386ed4e3656f5fed3aee1d6b7ec216c5e69b37f5c1b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}