{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755263",
    "entityType": "User",
    "nonce": "0x29ca2584e671538ed4e73fe75764ce1ff436389c23c67a6c3b0660e3f284609b",
    "signature": "0xb594c2636ba7c0c031652d26bbf0be9a2181fc525a4ad7fb3ac7617f1ca85d21751f97bff4bcb31f817acf8cbcee67a6f0f6ebfea64bbc057afc2ed94eb864fa1b",
    "signer": "0xf4932982eB30F083aAeE8850Fe5d411b7A5Df5a5",
    "userId": "746635137"
  }
}